Continued from page 4

But up to that time, Western reporters had rummaged through the charred remains of the consulate unimpeded and found sensitive documents, including Mr. Stevens‘ diary. CNN reported that the journal showed the ambassador worried about the rise of violence and Islamic extremism in Benghazi and feared he was on an al Qaeda hit list.

“The timelines put out by the administration make no sense, and it’s extremely curious the administration made little effort to get the FBI into Benghazi in a timely manner to conduct the investigation,” said Larry Johnson, a former CIA officer. “That investigation would have been critical to identifying the people who carried out the attack.”

This week, Rep. Frank R. Wolf, Virginia Republican, upped the ante by urging House Speaker John A. Boehner, Ohio Republican, to assemble a special bipartisan committee to investigate.

“Too many questions remain surrounding the Benghazi attack and response, and the questions seem to grow by the day,” Mr. Wolf said in a letter.