Al Noor mosque shooting survivor Temel Atacocugu points to the scar of a bullet wound in his arm during an interview at his home, Feb. 25, 2020, in Christchurch, New Zealand. Mark Baker/AP hide caption
attacks
Israeli security forces gather at the site of an attack that left two Israeli police dead in the northern city of Hadera on Sunday. GIL COHEN-MAGEN/AFP via Getty Images hide caption
Rescue workers and volunteers gather at the site of bomb explosion in Peshawar, Pakistan, on Friday. Muhammad Sajjad/AP hide caption
People receive first-aid after a car ran into a crowd of protesters in Charlottesville, Va., on Aug. 12, 2017. Terrorism researchers say right-wing extremists are turning cars into weapons in response to the ongoing protests against police misconduct. Paul J. Richards/AFP via Getty Images hide caption
United Nations peacekeepers stand next to a patient during a visit of the U.N. secretary-general at an Ebola treatment center in Mangina, North Kivu province, last September. Alexis Huguet/AFP via Getty Images hide caption
Microsoft said it has seen "significant cyber activity" by a hacker group with suspected ties to Iran. Drew Angerer/Getty Images hide caption
A map locating the attack that took place on June 9 in Sangha district and March 23 attack targeting two villages in Bankass district in Mali. Reuters hide caption
Two of the victims in Sunday's attack reportedly were British tourists who had stab wounds in the chest and stomach. Thibault Camus/AP hide caption
An Afghan member of medical staff cleans a stretcher following a suicide bombing attack in Kabul on April 22, 2018. (Photo by WAKIL KOHSAR / AFP) (Photo credit should read WAKIL KOHSAR/AFP/Getty Images) WAKIL KOHSAR/AFP/Getty Images hide caption
The U.N. has operated in the Democratic Republic of the Congo for years. Thursday evening's attack was the bloodiest assault on peacekeeping forces in recent memory, according to a U.N. official. Giles Clarke/Getty Images hide caption
On August 8, 2016, a suicide bomber killed 74 people and wounded 112 others at a government-run hospital in Quetta, Pakistan. Arshad Butt/AP hide caption
Smoke rises in the distance after an airstrike Wednesday on the village of Hass, Syria, where teachers and students were killed. AP hide caption
A commemoration ceremony is held for the victims of the Sept. 11 terrorist attacks on Sunday at the National September 11 Memorial and Museum in New York City. Spencer Platt/Getty Images hide caption
Bangladeshis gather near the scene of the raid Saturday in Narayanganj, on the outskirts of Dhaka. AP hide caption
Baton Rouge police block Airline Highway after police were shot in Baton Rouge, La., on Sunday. Several law enforcement officers were killed and several injured in a shooting in Baton Rouge on Sunday morning. Max Becherer/AP hide caption
A woman helps readjust the tributes in the Place de la Bourse, left for the victims of the recent bomb attacks in Brussels. Alastair Grant/AP hide caption
Police patrol outside the council chamber of Brussels on Thursday during ongoing investigations into the Paris and Brussels terrorist attacks. More than 30 people have been identified as being involved in a network behind the Paris attacks on Nov. 13, with links now established to this week's bombings in Brussels. Dirk Waem/AFP/Getty Images hide caption
At Mother of Sorrows Catholic Church in Murrysville, Pa., on Wednesday evening, worshipers held candles as they prayed for those injured in a stabbing attack at the local high school. Connor Mulvaney/Pittsburgh Post-Gazette/Landov hide caption