Basic reasons to negate--I am not responsible for the list
- Pakistan is a democracy in an area where democracy are scarce.
- The US needs Pakistan's ports and roadways to resupply the war efforts in Afghanistan.
- Pakistan is an unstable government whose collapse would be a significant political and economic crisis for the entire region.
- Pakistan serves as a bulwark against Iranian, Indian and Chinese expansionism into the rest of SW Asia.
- Pakistan is being used a hiding place for many interests that actively oppose and have actively opposed US interests in the region. Better to have them inside the US tent pissing out than outside the tent pissing in.