Another big story this week: top American officials publicly linked Pakistan's main intelligence agency to attacks against American targets. The United States' top military officer accused Pakistan of supporting attacks by the al-Qaida-linked Haqqani network.

Admiral Mike Mullen spoke at a Senate hearing; he retires next week as chairman of the Joint Chiefs of Staff. He said Pakistan's Inter-Services Intelligence agency supported the truck bombing by Haqqani operatives on a NATO base on September tenth. He said the ISI also supported an attack on the American Embassy in Kabul two days later.

Defense Secretary Leon Panetta looks as Joint Chiefs Chairman Admiral Mike Mullen, front, speaks Tuesday near Washington.

Admiral Mullen said the Haqqani network has deep ties to the Pakistani government.

MIKE MULLEN: "The Haqqani network, for one, acts as a veritable arm of Pakistan’s internal services intelligence agency."

He says the United States should still try to work with Pakistan. But he warned that the relationship -- and the future of Pakistan -- could be in danger.

MIKE MULLEN: "By exporting violence, they’ve eroded their internal security and their position in the region. They’ve undermined their international credibility and threatened their economic well-being. Only a decision to break with this policy can pave the road to a positive future for Pakistan."

Defense Secretary Leon Panetta also spoke at the Senate hearing.