What does it take to read someone their Miranda rights? 20 seconds? The dude has been in custody for hours and they simply said he won't be read them at all. It's not a safety issue at all.
http://voices.washingtonpost.com/supreme-court/2010/06/supre...
"The Supreme Court ruled Tuesday that a criminal suspect must explicitly invoke the right to remain silent during a police interrogation, a decision that dissenting liberal justices said turns the protections of a Miranda warning “upside down.”"