Pentagon and U.S. military officials issued letters to Congress that were not only misleading but false.
Looking to innovate, the Defense Department has set up shop just a stone's throw away from Google.
"I'm not a believer in backdoors or a single technical approach. I don't think it's realistic."
Defense Secretary Ashton Carter is said to have sent a letter asking for a bigger military contribution.
Defense Secretary Ash Carter says the U.S. is prepared to change the rules of engagement.
The U.S. wants to arm the Kurds to open a second front against the militant group, but Turkey has other ideas.
Carter said on Tuesday that the United States military would sail and fly wherever international law allowed.
Vladimir Putin has escalated the Syrian conflict with airstrikes, but U.S. officials say his strategy is self-defeating.
At Wednesday's hearing Senators contemplated war and accused administration officials of capitulating.
U.S. Vice President Joe Biden reassured Iraqi Prime Minister Haidar al-Abadi on Monday of the U.S. commitment to Iraq's fight against ISIS.
Carter benefited from bipartisan support after he was nominated in December.
Ashton Carter is a former deputy secretary at the Department of Defense.