Emergency personnel remove passengers at the scene of a bus crash, Saturday, Feb. 2, 2013 in Boston. Authorities say a charter bus heading from Harvard University to Pennsylvania has st

 

              Emergency personnel remove passengers at the scene of a bus crash, Saturday, Feb. 2, 2013 in Boston. Authorities say a charter bus heading from Harvard University to Pennsylvania has st
Emergency personnel remove passengers at the scene of a bus crash, Saturday, Feb. 2, 2013 in Boston. Authorities say a charter bus heading from Harvard University to Pennsylvania has struck a bridge in Boston, injuring 33 people. (AP Photo/The Boston Herald, Stuart Cahill) BOSTON GLOBE OUT; METRO BOSTON OUT; MAGS OUT; ONLINE OUT