The U.S. government claims the supercomputers have been used to do nuclear testing.

The U.S. government lost a bid on Thursday to withhold some evidence in advance of the extradition hearing for four Megaupload defendants charged with criminal copyright infringement.

Oracle is being sued by the U.S. government for allegedly overcharging it by millions of dollars, according to documents on file in U.S. District Court for the Eastern District of Virginia.

The U.S. government lacks a plan to counter terrorist recruiting efforts online, even though such efforts by jihad groups are growing, one terrorism expert told U.S. lawmakers.

Bain Capital Partners and China's Huawei Technologies have abandoned their bid to buy U.S. networking firm 3Com because of security concerns by the U.S. government, Bain said.

U.S. government agencies need to take additional steps to protect against cybersecurity problems after a series of congressional hearings and reports exposed several weaknesses in 2007, representatives of Symantec said.

The U.S. government is asking a California court to force Google Inc. to turn over information about usage of the company's search engine for finding pornography on the Internet.