The US has pressed Pakistan to conduct a thorough, fair and transparent probe into the deadly terror attack on the IAF base in Pathankot . The US also wants to see the outcome of the investigation.State Department spokesperson John Kirby said yesterday United States encourages an aggressive approach to counter-terrorism operations by Pakistan and other regional powers.He acknowledged that the US has reached out to Pakistan after the Pathankot terror attack.<br/><br/> Meanwhile, the Pentagon has said communication between India and Pakistan is a hopeful sign that the two countries will be able to resolve their concerns bilaterally despite the terror attack in Pathankot.<br/><br/>Six terrorists, who had sneaked into the country from Indo-Pak border in Pakistan, had attacked Indian Air Force base in Pathankot during the intervening night of January 1 and 2. All the terrorist were killed during a counter-operation by Indian forces in which seven security personnel were killed.