PresidentBarack Obamahas authority to deny a visa toIrans newest choice as envoy to the UN, yet doing so would open up risks forU.S. foreign policy. The decision in the case of Hamid Aboutalebi, who was part of the group that took over the American embassy in Tehran in 1979, is being made at a delicate point in U.S.-led negotiations overIrans nuclear ...

WASHINGTON (AP) -- A war-weary Congress generally backs President Barack Obama's outreach to Iran, but with tougher U.S. economic measures against Tehran on the way, the president's diplomatic task could get harder if he doesn't make quick progress. Obama's phone call last week to Iranian President Hassan Rouhani was a groundbreaking conversation....