BOSTON—There are no known threats to this year’s Boston Marathon, but on the 10-year anniversary of the terrorist attack that killed three spectators, federal, state, and city law enforcement leaders said Thursday that they are prepared for anything.
“At this point in time, the FBI is not aware of any specific or credible threats targeting this year’s race,” Joseph Bonavolonta, head of the FBI’s Boston office, said at a news conference. “And while we’re confident in this assessment at this particular time, we are asking you to remain vigilant because we all know how quickly the threat landscape can change.”…