Strike on Doctors Without Borders hospital a 'tragic but avoidable accident'
                                
                                
                                    (Newser) -
                                    More than a dozen US military personnel have been disciplined, but face no criminal charges, for errors that led to the  aerial attack on a civilian hospital  that killed 42 people in northern Afghanistan last year, say US defense officials speaking anonymously. Per the  AP , the officials say the disciplinary...