board an airplane to fly to europe. it s important for health but it doesn t pose a risk just because we can detect it. just because we can detect it doesn t mean it ooh es a risk. thank you so much for stopping by to give us some understanding on that. thank you very much. the libyan government continues to allege conquest over rebel fighterers. the most recent, the shoot down of two u.s.-built helicopters. they were knocked out of the sky over the disputed oil city of brega. that report is not confirmed. rebel forces fired toward ang ajdabiya today. gadhafi continues to elude efforts to overthrow him. appearing on state tv for the first time in two weeks, nbc s stephanie gosk joins us live with the latest on the fighting. by seeing gadhafi on tv what s the reaction on the ground to that?