Historians still puzzling over East Germany after 25 years
![Historians still puzzling over East Germany after 25 years](http://images.worldnow.com/AP/images/8928069_G.jpg)
In a musty room inside a maze of offices in east Berlin, two women are working patiently on what may be the biggest puzzle the world has ever seen: more than half a billion pieces that together detail innumerable crimes by...