Lawyers seeking to spare convicted Boston bomber Dzhokhar Tsarnaev from the death penalty called witnesses on Wednesday who described his volunteer work with disabled children, his respect for his older brother, and his father's mental illness in the years before the attack.
Changes in Saudi Arabia's leadership have concentrated power in an inner circle of the Al Saud dynasty, removing constraints on the monarch and making the conservative kingdom's strategic positions less predictable.
Washington wants to be certain that any nuclear deal between Iran and major powers includes the possibility of restoring U.N. sanctions if Tehran breaks the agreement without risking Russian and Chinese vetoes, a senior U.S. official said on Tuesday.