adopted daughter, was killed. >> today, we have done what we had to do. if necessary, we shall do it again. >> reporter: ghadafi survived. he wasn't at the site. dozens of libyans died, as did two u.s. air force pilots. another punishment for the murder of civilians came in 1998. "operation "operation infinite reach." up to 2,000 were wounded. the punitive strikes have been used by a long line of presidents to punish or warn others when their actions are deemed a threat to american interests. >> i said we would act with others if possible and alone if necessary. to ensure the terrorists have no sanctuary anywhere. tonight, we have. >> reporter: gary tuchman, cnn, atlanta. thanks for joining us here