viewers said they should be shut down. human rights staff have documented severe over crowding, torture, ill treatment, forced labor, rape and acute malnutrition amongst other human rights violations. this is, michelle, the second time this center has been hit. the u.n. calling for a full independent investigation as to why this happened. as you rightly point out, no claim of responsibility as of yet. u.n. backed government blames the renegade general. he is saying his forces are being blamed to basically give them a bad rap, as it were. but what is clear is that those victims have nothing to do with this bloody battle in libya and yet it is these migrants who are losing their lives, michelle. becky, as always, thanks for that great analysis. 5:49. a check on cnn business.