By ZALMAY KHALILZAD
SINCE the 9/11 attacks, Pakistan has behaved toward the United States as both friend and adversary — and gotten away with it. The latest evidence of its duplicity is the revelation that Osama bin Laden lived for years in a house near Pakistan’s national military academy and a local branch of its intelligence service without any evident interference.
Even before the American raid last week on Bin Laden’s compound in Abbottabad, Pakistan had a huge credibility problem. It provides arms and safe haven for Afghan insurgent groups and pays their commanders to carry out attacks, but denies doing so.