German puzzlers reconstruct Stasi files from millions of fragments Barbara Poenisch spends most of her days at work doing puzzles -- piecing together a mountain of documents torn up by the hated East German Stasi secret police.The former bookbinder is one in a team of 10 people painstakingly reconstructing surveillance reports, private letters or policy papers that the Stasi accumulated and desperately tried to destroy as the communist regime came crashing down 30 years ago. IMAGES AND SOUNDBITES