A Mexican journalist has obtained what he claims is the first photo of Joaquin "El Chapo" Guzman, inside his cell in the Altiplano prison. Carlos Loret de Mola, a respected reporter, tweeted the photo of the world's most notorious druglord with the caption: "The image of Chapo behind bars."And Loret, in his Sunday night television show, detailed a series of new security precautions that have been made at the prison - the same one from which Guzman escaped in July.During his first five nights he was moved seven times. All of the security cameras have been checked, and blind spots removed. The number of cameras is to increase tenfold. Systems that were switched off during his escape have been reinstalled.Guzman fled from the prison in a tunnel, and the alarm was not raised immediately. Now a red alert has been put in place. The floors have been reinforced with three layers of steel.Guzman, 58, was recaptured on January 8. New reports quoted claims that he gave away the secret of his hiding place by sending his men out to buy tacos.Police were closing in on him, helped, they say, by his contact with Mexican actress Kate del Castillo, who brokered an interview between Guzman and actor Sean Penn.After the interview, the authorities continued their hunt. They knew that he was looking for an urban area in which to hide and were familiar with the house in Los Mochis, which his men had been renovating.The final bit of evidence was a food order, Mexican officials told The New York Times.''Just two blocks away, a big order of tacos was picked up after midnight on January 8 by a man driving a white van, like the one believed to be driven by Guzman's associates, witnesses said.''Hours later, at 4.30am, the marines stormed the compound.'' ..