Archive for March, 2006

Surfing the Internet: Who’s Watching? Who’s Censoring?

Tuesday, March 21st, 2006

Last night I attended Surfing the Internet: Who’s Watching? Who’s Censoring?, a PBS These Days community discussion hosted by Tom Fudge at the Joan Kroc Institute for Peace and Justice at the University of San Diego. The presentation was recorded and will be heard tomorrow on KPBS and will be made available as a podcast, as well.

Panelists included:
David Brin, science fiction writer and author of The Transparent Society
Lance Cottrell, Founder and CEO, Anonymizer
Pam Dixon, Executive Director, World Privacy Forum
Lawrence Hinman, Director, Values Institute, University of San Diego

USD is a beautiful campus with a first class venue at the Institute for Peace and Justice. The following is some of what I heard with a little elaboration of some of the more interesting points that were made.

David Brin jokingly talked about how David Copperfield and David Bowie had knocked him off of page one of Google (when searching for “David”) and relegated him to the second page (he’s at the 20th spot today). He stated that American’s “get” the wild west Internet culture, but some other cultures don’t like it. The Internet is changing and becoming more controlled by government. He offered insight regarding the fact that the real problem is government increasing its secrecy and not the blinding of the government by restricting its use of technological tools to gather information. That statement drew some scattered applause from the audience. Mr. Brin said that databases are an expansion of human memory and cameras are expansion of human vision. He went on to describe the futuristic concept of “penny camera stickers”, where children paste stickers that are embedded with miniature cameras on walls. The stickers would have 1-year batteries and their own Internet address.

On the subject of the passing of 20th century anonymity, Mr. Brin said that in the 21st century, we are becoming more of a global village, where when you are walking into a shop in Bangkok, facial recognition software will let the locals know who you are. Finally he mentioned a project he is consulting on, where bank branches will offer biometric centers to prove you are who you say you are for password verification.

Lance Cottrell mentioned the recent lawsuit against Google’s methods for ranking Web sites, by a company that dropped in Google rankings. (The complaint alleges Google has engaged in anti-competitive behavior and misled the public by positioning its search engine as an objective source for finding Internet content.) He went on to describe how the Web is more dynamic than some people are aware of. Web sites will alter pricing or even which products are displayed depending on who you are or where you are or where you came from. For example, if a customer came from a product pricing comparison site, it shows the customer is price sensitive and the prices could be adjusted downward accordingly.

Mr. Cottrel related how Anonymizer was started in 1995 for consumers but now the government uses his company to go after terrorists and cyber crime. Terrorist sites have become more sophisticated by having different versions of their sites displayed depending on where you come from. The CIA in Virginia may not see the beheadings yet visitors from the Middle East will see the entire barbaric act.

He talked about Yahoo’s decision to locate infrastructure in China as a mistake. He referred to Yahoo! complying with the Chinese Secret Police without argument by turning in dissident, Shi Tau, a reporter with The Contemporary Business News in Hunan, who is now serving 10 years in jail. You can’t reach Anonymizer directly in China, so users there need to know what the current pseudonym is in order to get to it. Anonymizer tries to show the Chinese government erroneous URLs in order to fake them out. Anonymizer has a “freedom spam list” which users are unable to opt out of, which the company uses to help ferret out the government officials who are moles.

Anonymizer avoids having to give information via subpoenas by not maintaining any log information at all.

Pam Dixon was asked to define googlebombs. She said that a combination of market data with search information could be considered a form of harmful censorship. She mentioned RFID networks as another privacy concern.

Lawrence Hinman wrote a recent op-ed piece, Why Google matters. During the discussion he mentioned that the Patriot Act allows the government to ask a professor about students and makes it a federal crime if that professor tells the students that the feds were asking about them.

House Trucks

Tuesday, March 21st, 2006

Can’t afford an RV?

Many people have the dream of being a gypsy–a dream of travel & freedom. For every housetruck or housebus, there is an artist who has built it to meet their individual needs.

House Trucks

House Truck


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Your Clipboard Contents Revealed

Monday, March 20th, 2006

Project IP lists just about everything a webserver can find out about your computer. Your clipboard contents may be vulnerable.

Only works in Internet Explorer on the Windows platform. It reportedly works with varied success when IE is running in an emulator such as VMWare on another OS. If you have to use Windows, at least dump IE and use Firefox.

Rogue, evil websites can use this to steal potentially sensitive data from your Windows clipboard.

Fix it now!

Go to Tools – Internet Options – Security – Select a security zone – Custom Level – Scripting – Allow paste operations via script and set it to Disabled or Prompt.

St. Patricks Day

Friday, March 17th, 2006

St. Patrick’s Day is the Roman Catholic feast day that honors St. Patrick (387-461 AD), the patron saint of Ireland. Because of St. Patrick’s patronage, St. Patrick’s Day (March 17) has come to be closely associated with Ireland and Irish culture.

The most common traditions on St. Patrick’s Day include wearing green, enjoying Irish folk music and food, and by consuming large quantities of Irish beer (sometimes dyed green), such as Murphys, Smithwicks, Harp or Guinness or other Irish liquors such as Irish whiskey, Irish Coffee or Baileys Irish Cream. Traditional symbols of St. Patrick’s Day are the national emblem of Ireland, shamrocks (a plant with leaves composed of three leaflets), and leprechauns.

Leprechaun

DIY Backdrops and Greenscreens

Thursday, March 16th, 2006

How to design and assemble greenscreens and backdrops for photos and video, as well as how to easily and inexpensively build a portable frame to support these backdrops out of PVC pipe.

greensceen upgreen screen down

Fabric types/backgrounds:

Muslin is a strong, sturdy fabric for painting on, or as a simple white or tan-colored backdrop. You can use acrylic or oil paints (found at art supply stores) or paints you can find at home-supply stores to make professional-looking backdrops for portraits and the like. The only problem with muslin is that it is prone to wrinkling (but this may not matter if you paint it. Be sure to wash the muslin right after you buy it and iron it to get out as many of the wrinkles you can. Make sure you buy PVC or metal piping that is sturdy enough to hold some of the thicker muslins. Do a Google search for ‘paint muslin backdrop’ to find out more.

Cotton, one of the more common fabrics found in a fabric store, is fairly easy to keep clean, but not so easy to paint on. Cotton is best for solid dyed colors. Make sure you wash and iron the backdrop before rolling it, or the wrinkles may be very hard to remove!

Rayon is a very lightweight fabric that can be had for a low price and is easy to transport, roll, and keep wrinkle-free. However, because it is so thin, you have to be careful when lighting it (sometimes lights behind the screen will make the lighting very uneven).

Polyester is a very low maintenance fabric, and is relatively easy to keep wrinkle-free. Simply make sure you’ve washed and dried it, then take it out as soon as you can to avoid wrinkles. Light reflects off polyester a little brighter than most cottons, so make sure you account for that when lighting backdrops. You can purchase polyester in many different thicknesses (and many different prices); make sure your backdrop support frame is sturdy enough to hold it.

For Compositing: Professionals usually have access to professional-quality blue and green paints and fabrics for building high-quality backdrops. However, the average photographer or videographer does not have so much money. In my experience, the ‘greenest green’ or ‘bluest blue’ you can find will work fairly well (especially for photographs which you’d like to edit in Photoshop).

DIY Bottle Cap Tripod

Wednesday, March 15th, 2006

Step-by-step instructions for creating a digital camera tripod from a soda bottle.

Bottle Cap Tripod

Pi Day

Tuesday, March 14th, 2006

Written in the USA date format, March 14 is an unofficial celebration for Pi Day derived from the common three-digit approximation for the number π: 3.14. It is usually celebrated at 1:59 PM (in recognition of the six-digit approximation: 3.14159). Some, using a twenty-four-hour clock rather than a twelve hour clock, say that 1:59 PM is actually 13:59 and celebrate it at 1:59 AM or 3:09 PM (15:09) instead. Parties have been held by the mathematics departments of various schools around the world.

pi
pi