A frantic search was underway Monday for the notorious drug lord Joaquin "El Chapo" Guzman — but there was no sign of him more than 24 hours after his elaborate escape from a maximum-security prison in Mexico. Guzman slipped into a shaft through the shower floor of his prison cell and got away in a mile-long tunnel outfitted with a motorbike. "This is like capturing Osama bin Laden, having him spend a year in prison, and then walking away from that prison only to re-engage in his terrorist activities," said Anthony Coulson, a former supervisor at the U.S. Drug Enforcement Administration. Barry McCaffrey, former director of the U.S. Office of National Drug Control Policy and an NBC News analyst, said Guzman would probably not leave Mexico because "he's safest there." "I mean, entire police departments have been bought," he added.