good evening, everyone, i m erin burnett. outfront tonight, warning signs missed? that s what the republican head of the house oversight committee is charging tonight in the lead up to the u.s. ambassador s death in libya. he s calling for congress to return for a special hearing next week. it was a three-page letter and in it, darrell issa listed 13 security incidents and threats in libya in the past six months. including in june, a pro gadhafi facebook page mentioned his running habits. the posting directed a threat against stevens. issa says stevens stopped his morning runs for about a week and then resumed them. in june, an ied was successfully placed at the u.s. consulate in benghazi, blowing a hole in the security perimeter gate, big enough for 40 people to go throu through. and in the weeks before the september 11th attacks, unarmed libyan guards working at the consulate were warned by family members to quit their jobs, because of, quote, rumors in the community of a