British sports minister Hugh Robertson, shown here in a July 26, 2011 file photo, said Britain "won't be cowered by this sort of behavior" in announcing that Sunday's London Marathon will go on in the wake of Monday's bombings at the Boston Marathon. (AP Photo/Sang Tan)

Photo by: Sang Tan

British sports minister Hugh Robertson, shown here in a July 26, 2011 file photo, said Britain "won't be cowered by this sort of behavior" in announcing that Sunday's London Marathon will go on in the wake of Monday's bombings at the Boston Marathon. (AP Photo/Sang Tan)