much since being read his rights, including the right to remain silent. we go to holly hughes, she joins us. holly, we heard this before, you have the right to remain silent, anything you say can and will be used against you in a court of law. >> correct. >> why did the feds wait so long before mirandizing him, what's the legal strategy behind this. >> there's a couple things at play. number one, you have the public safety exception which means the greater good is we need to find out if there's anyone else involved, if there's any more bombs out there still. so let's get to what we need to get to immediately. there's a couple other reasons. if this suspect started voluntarily talking, sort of knew he was in the hot seat, said hey, let me tell you what happened, wasn't my fault, was my brother got me into this, if he starts to voluntarily give up information, they don't stop him midstream, say let me tell you about your rights. they can continue to gather that information without violating any of his rights. >> so the thing is if they don't read him his rights, then