A French terrorism trial was thrown into turmoil on Wednesday by a report French agents secretly interviewed the six accused during their detention at a U.S. military camp on Cuba’s Guantanamo Bay. The Liberation daily published a French diplomatic telegram referring to intelligence agents conducting interviews at least twice while the men were held without charge on the Caribbean island…. Some of the suspects arrived at the main Paris Criminal Court brandishing Liberation’s front page and appeared relaxed and all smiles inside the courtroom as they discussed the surprise development. Presiding Judge Jean-Claude Kross noted wryly the diplomatic telegram was dated April 1, 2002 — April Fool’s Day — but refused to halt the three-day-old trial over a document whose authenticity had not been fully established.