militants. analysts i speak to are a little bit skeptical they think it might be a tactical retreat for the militants but certainly a move in the right direction. martha: could be. how does all this impact the fbi investigation going on there into the death of ambassador stevens and three other americans? >> reporter: martha, the word we're getting on the ground from benghazi it is calm. authorities are more in control. that is a good thing. the word also been getting on the ground here that the fb i-team sent to this country to investigate the crime has been hampered, maybe even blocked from the benghazi situation and the crime scene there. so that could help. overall, frankly also the public is going after the very militant groups that a lot of people suspect had a real hand in the killing of ambassador stevens and the other americans. that might be a good thing. as for the libyan authorities we're not exactly sure how fast that investigation is going forward. we met with one official