Britain's Prime Minister Theresa May gives a media statement outside 10 Downing street in London, Wednesday March 22, 2017, following a terror attack in the Westminster area of London earlier Wednesday. A knife-wielding man went on a deadly rampage, Wednesday, plowing a car into pedestrians on London's Westminster Bridge before stabbing an armed police officer to death inside the gates of Parliament. Four people were killed, including the attacker, and about 20 others were injured in what authorities called a terrorist incident. (Richard Pohle/Pool via AP Photo).
