Israeli authorities say they have shot dead two Palestinians they accused of opening fire at cars in Jerusalem and wounding one person. Separately in the occupied West Bank, Israeli soldiers shot and killed a Palestinian they said tried to stab them. The attacks came a day after a Palestinian allegedly went on a stabbing spree near the city of Jaffa, killing a U.S. student, Taylor Force. The attacks coincided with a visit by Vice President Joe Biden over a possible increase in U.S. military aid to Israel.