From the day Raymond Allen Davis shot dead two Pakistanis in Lahore on January 27, it is his status that has been controversial. The two governments are blowing their own version over Mr. Daviss status and airing their own interpretations on granting diplomatic immunity to Mr. Davis. This necessitates re-visiting Visa policy for US officials. Under duress, Pakistan enhanced visa authority to its ambassador in Washington to issue multiple visas for CIA personnel, military officers, auditors, development specialists and junior diplomats without verifying the credentials of the incumbents by the security agencies. In fact, visa issue has been on the anvil for quite a long time. The relationship between Washington and Islamabad hit an all time low in those days when US officials accused the Pakistani authorities of deliberately slowing down the process of granting visas and 'agreemas (diplomatic acceptance) to senior US diplomats and officials. The US State Department argues that if Pakistan continued to deny visas to hundreds of US officials and contractors, Washingtons efforts to help stabilise the violence-ridden country could be affected. Moreover, frequent checking of American diplomatic vehicles in major cities across the country has also irked the Pentagon. Under the cloak of US contractors, the infamous Blackwater and Xe operatives sneaked in Pakistan. And Mr. Davis is one of them. In the past, the undesirable elements seeking entry in Pakistan were rejected after a thorough check by security agencies. I think that the 'security value placed to verify the credentials is obligatory in safeguarding our own national interests that precede all other relationships even strategic partnership with the US. NOOR NAWAZ KHAN, Kohat, February 23.