[fluffy0000]

you might want to check your figures dude- there is no 600,000 illegal aliens or whatever number mentioned in any GAO report in any prison; US or otherwise.
U.S. Bureau of Justice Statistics (BJS) lists total number of US prison population was 2,304,115 were incarcerated in U.S. prisons and jails in 2008.
Excerpt form GAO report you have above was widely circulated in US media. This was from Ed Koch article printed in WSJ,NYT other publications notice date of report and date of publication-

Imprisoned Illegal Aliens Should Be Deported

Monday, August 31, 2009 4:25 PM

By: Ed Koch (x mayor of New York City)

I have a proposal which I hope the Obama administration will consider and implement.
Immediately, or as soon as possible, the United States should deport all illegal aliens who are in federal and state prisons, and in our municipal jails, to their countries of origin. In 2005, the Government Accountability Office (GAO) issued a report on the number of illegal aliens incarcerated in the United States.
The GAO reported that the number of convicted criminal aliens incarcerated in federal prison on Dec. 27, 2003 was 46,063, and the number incarcerated in state prisons and local jails was 262,105.
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