what have they been doing amid all of this? >> reporter: public face of people tripoli is support for khadafy. often paid supporters are rounded up wearing green and shouting their support that they are ready to die with colonel khadafy. but protests have been limited in large part to a heavy security pressure from khadafy's own security apparatus. the last attempt at organized protests here was three weeks ago. when that happened, when people. [ gun shots ] >> reporter: that is about 300 yards away. we heard that battery go off quite a bit. [ gun shots ] >> reporter: what that sounds like to me four ..50 caliber guns, anti-aircraft fire. [ gun shots ] >> reporter: you hear car alarms