The kind of story I love: technology used to bring the oppressor to book. The Register reports that documents of the East German State Security Service (Stasi), torn into shreds and stored in 16,000 brown sacks, may soon be pieced together by a software program developed by the Fraunhofer Institute.On Monday, the Institute said it would take five years to solve the world’s biggest jigsaw puzzle electronically. If done by hand, the operation would take several hundred years.