Here's what you need to know about this year's Boston Marathon, from street and MBTA station closures to items prohibited for spectators.
Former President Bill Clinton and Oklahoma Gov. Mary Fallin spoke at a ceremony remembering the April 19, 1995, bombing—the deadliest act of domestic terrorism in U.S. history.
The vessel, carrying would-be migrants, appears to have been headed for the Italian island of Lampedusa.
The footage shows some 30 people it says are Ethiopian Christians killed in two separate locations in Libya.