WHILE President Zardari is in Washington to seek Obama administration's political and economic support, the outcome of his talks hinges on how far he is able to address the American concerns. America's security issues are on the top of the list of President Obama's administration. Washington views Al Qaeda and the Taliban as a major threat to the US. The US administration is also edgy about the security of Pakistan's nuclear weapons in the background of the militant's advance from FATA to the settled districts. Recently the occupation of Buner, situated within 60 miles of Islamabad, had revived in Washington the memories of the Taliban's advance to Kabul in 1996 and the subsequent trauma of 9/11. Secretary Clinton last month accused Islamabad of abdicating to the Taliban and to the extremists. What has increased Washington's concerns is the perception that the PPP-led coalition is fragile and enjoys decreasing public support. Statements of the sort had led to surmises that his administration might be backing away from Mr. Zardari and was looking for a replacement. The US pressure continued as Pakistan delegation arrived. On Tuesday special representative Holbrooke maintained in a Congressional testimony that Pakistan must demonstrate its commitment to rooting out al Qaeda and the violent extremists. President Zardari has tried to allay the US suspicions during a number of meetings he held in Washington. On Tuesday he was grilled for 90 minutes by the House Foreign Affairs Committee where his government's ability to beat back the militants was under review. It remains to be seen how far he has succeeded in projecting his government's stand. The US concerns have been enhanced by the deteriorating security situation in neighbouring Afghanistan where American casualties have increased manifold during the last few months. President Obama therefore considered it necessary to hold a three way meeting with Mr Zardari and Mr Karzai. The two visiting leaders held talks with important US administration officials including Secretary Clinton, National Security Advisor General James Jones and Mr Holbrooke. The focus was to make Afghanistan and Pakistan, considered as both unstable and strategically vital, to work with each other and the US. Mr Zardari was told that US stands by the democratic government in Pakistan and would help resolve Pak-India water dispute. In return Washington succeeded in getting Pakistani sign an MoU to discuss allowing Afghanistan to use the land route with India for trade, a demand that both Kabul and New Delhi have failed to get accepted for the last four decades. Mr Zardari has to ensure that in his pursuit of political and economic support, Pakistan's interests are not bartered away in any respect. Pakistan's nuclear programme should particularly remain safe.