in libya, moammar gadhafi's forces are battering misurata. some fear a massacre is imminent because the opposition is so outgunned. fred pleitgen has an exclusive look at the city under siege. how grim is the situation in misurata right now? >> reporter: yeah, it's very grim. precisely because so many fear that there could be a massacre on the civilian population, a lot of people have fled their homes within misurata, but there's nowhere for them to go because the city encircled by gadhafi's troops. have a look. as heavy fighting rage in downtown misurata, many residents have fled from the tank and artillery shells raining down on their