BERMAN: New this morning, no apparent sign of one of the most dangerous men on earth. A drug lord so powerful he's believed to have ordered the murders of some 10,000 people. The kingpin who busted out of prison again. Now the Mexican government is offering a $3.8 million reward for El Chapo Guzman.</s>BOLDUAN: His stunning escape through a mile-long tunnel is costing top prison officials their jobs. It also has Donald Trump claiming the cartel leader is threatening him online. Let's get the very latest from the site of the prison break. National correspondent, Polo Sandoval, is in Mexico -- Polo?</s>POLO SANDOVAL, CNN NATIONAL CORRESPONDENT: Hi, Kate, John. Good morning to you. That search continues amid growing criticism against the Mexican government. There's so many people not only in this community but really throughout the country, people who want to know exactly how this very dangerous individual, Joaquin "El Chapo" Guzman was able to tunnel out of prison. There's heavy criticism being leveled at the current president. We believe this man has been the subject of much criticism, also for not addressing very high levels of corruption throughout all levels of government, so I can tell you that the other uncertainty here, also for not addressing very high levels of corruption throughout all levels of government. So I can tell you that the other uncertainty here is what this development may mean for the cartel landscape.
No Sign of Guzman, Trump Claims Guzman Threats.