Tensions run high between cold war foes as a fugitive former US contractor is now at the center of a political tug of war between Washington and Moscow.<br/> <br />Edward Snowden, who leaked details of US spy programs, is hiding out in the transit area of Moscow airport after the US has called for him to be sent home.<br/> <br />State Department spokesman Patrick Ventrell.<br/> <br />(SOUNDBITE) (English) STATE DEPARTMENT SPOKESMAN PATRICK VENTRELL, SAYING:<br/> <br />"Look the Russians will do their own interpretation of their own regulations and their own laws. But we are making the point to them that we think there is a basis for him to be returned."<br/> <br />The dispute could further fray ties between the United States and Russia says Dmitry Trenin an analyst with Carnegie Center in Moscow.<br/> <br />(SOUNDBITE) (Russian) CARNEGIE CENTER POLITICAL ANALYST DMITRY TRENIN, SAYING:<br/> <br />"I think that this crisis can have very negative consequences for Russian-American relations, because, obviously for the Ameri