THE stakes in the Raymond Davis saga are getting higher with each passing day. The US president has now himself claimed publicly that Mr Davis has immunity, and sent over Senator John Kerry to assert the same. This question is, however, far from clear-cut. For one, the actual role of Mr Davis here still remains murky. Even if one assumes he was performing consularor diplomatic duties, the Vienna Convention provides different levels of immunity to various foreign representatives. According to the State Department’s own guidelines for American...