Details of the investigation, which also involved the FBI and Energy Department, were provided to The Associated Press by U.S. officials and Georgian Interior Minister Vano Merabishvili.
That means the US government released the information by choice today.
This is my speculation, but I think this was released today to bolster Bush's pro-war agenda after his speech. This is an important piece of news. If (when) "nucular" material does get into the hands of terrorists, we are all in trouble. Why wasn't this news reported last summer? Using information that is vital to all of our safety for political agendas is disgraceful.
Man, the last few years have really turned me into a pessimist.