Today no other country on earth is arguably more dangerous than Pakistan. It has everything Osama bin Laden could ask for: political instability, a trusted network of radical Islamists, an abundance of angry young anti-Western recruits, secluded training areas, access to state-of-the-art electronic technology, regular air service to the West and security services that don't always do what they're supposed to do. (Unlike in Iraq or Afghanistan, there also aren't thousands of American troops hunting down would-be terrorists.) Then there's the country's large and growing nuclear program. "If you were to look around the world for where Al Qaeda is going to find its bomb, it's right in their backyard," says Bruce Riedel, the former senior director for South Asia on the National Security Council.