NAIROBI, Kenya — More than 50 African Union peacekeepers have died in fighting in Somalia since a major offensive against Islamist militants began two weeks ago, officials told The Associated Press on Friday.The death toll is far higher than any publicly acknowledged casualty figures for the AU, which appears to be trying to keep the extent of its losses under wraps due to political considerations in Burundi, one of two nations providing the bulk of the forces.Read More... More on Africa