you can prepare for probably thousands of the cost and no death. >> reporter: who messed it up so bad in haiti? >> we did. engineers. >> reporter: by not doing the right things? >> i did not speak out loud enough. it's our responsibility. i have no doubt in my mind we need to take responsibility. this is my screw-up. this should not be happening again. this should not be -- this story need be told. >> reporter: after so many deaths engineering a safer future is a heavy burden. joe johns, cnn, washington. quick reminder, the live chat is up and running at ac360.com. join that live chat. we have established contact with chile. we're going to go back there. soledad o'brien and karl penhaul are standing by live for us. we're going to take a look at where the next big quake may hit. including two cities here in america. the seismologist is here with us. killer whale attacks. government investigates.