Tourists run for safety past the entrance to the U.S. Capitol Visitors Center (R) in this video frame grab from WRC-TV footage after a shooting in Washington March 28, 2016. Photo: Reuters
Ambulances and other emergency vehicles gather in front of the U.S. Capitol Building after a shooting at the U.S. Capitol Visitors Center in Washington March 28, 2016. Photo: Reuters
A migrant holds a baby during a protest at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 27, 2016. Photo: Reuters
U.S. President Barack Obama and first lady Michelle Obama perform a reading of the children's book "Where the Wild Things Are" for children gathered for the annual White House Easter Egg Roll on the South Lawn of the White House in Washington, March 28, 2016. Photo: Reuters
Demonstrators protesting against the wave of terrorism confront police in front of the old stock exchange in Brussels, Belgium. March 27. 2016. Photo: Reuters
Migrants and refugees sing and dance during a party at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 27, 2016. Photo: Reuters
Men throw water on a woman as part of traditional Easter celebrations in Szenna, Hungary, March 28, 2016. Photo: Reuters
