FBI agents were sent to Libya after the September 11 attack on the U.S. diplomatic mission and another facility in which the U.S. ambassador and three other Americans died. So far they have conducted interviews in Tripoli and have yet to go to Benghazi. …

State Department spokeswoman Victoria Nuland sidestepped the question of whether an agreement had been reached with Libya, but said: “We have a commitment from the Libyan government to work together. There has been cooperation at the political level. There has to now be cooperation at the investigative level.”

She said in State Department contacts with the FBI on Tuesday, “they expressed confidence that they’ll be able to work well with the Libyans.”