In a brief email exchange with The Associated Press, Penn also dismissed criticism over his interview with the fugitive, who was captured on Friday, a day before Penn's 10,000-word story was published in Rolling Stone magazine.

Mexican officials have said that contacts between Guzman's lawyers and Penn and actress Kate del Castillo helped them track down the fugitive and they raided his hideout in rural Durango state a few days after their Oct 2 meeting.

Guzman evaded authorities then, but was finally captured after a shootout Friday in the Pacific coast state of Sinaloa. Penn wrote in the Rolling Stone article of elaborate security precautions, including switching phones.

He was right and they had apparently been following del Castillo for months based on contacts with Guzman's lawyers.

The Mexican newspaper El Universal published 10 images yesterday that appeared to show Penn being monitored as he arrived in Mexico.

In the photographs, Penn, wearing dark glasses and a baseball cap, is shown arriving with del Castillo at an airport, then at a hotel, and greeting the men who apparently took them to a small airstrip, from which they flew to the jungle camp to meet Guzman. The newspaper said the photos were part of a Mexican government intelligence file it had obtained.

Asked about the images yesterday, Penn would only say: "I've got nothing' to hide." The actor also shrugged off a suggestion that he was 'taking hits' for agreeing to submit his article to Guzman prior to publication by Rolling Stone.

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