FBI collects Apple IDs from millions of devices, Anonymous alleges

FBI collects Apple IDs from millions of devices, Anonymous alleges
Anonymous says it obtained 1 million Apple IDs from the computer of an FBI security specialist. Assuming the story is true, why would the government hold on to these Apple IDs?
http://www.csmonitor.com/Innovation/Horizons/2012/0904/FBI-collects-Apple-IDs-from-millions-of-devices-Anonymous-alleges

I'm glad I don't have either an iPhone or an iPad. I wonder if they're looking for copyright violations? Or something else more sinister....

Here's a site where you can look up your own Apple device's UDID and if it's on the FBI list:
The more characters you enter from your UDID, the more accurate your result will be. We do not store UDIDs entered, but as this is not transmitted over SSL, if you are concerned about your security, please enter just part of your UDID.
http://thenextweb.com/apple/2012/09/04/heres-check-apple-device-udid-compromised-antisec-leak/