Almost 300 people were killed and hundreds more wounded.
Eyal Weizman uses floor plans, cell phone footage, and road maps to reconstruct what happened in devastated war zones.
Most of the girls in Nigeria were under 15 years of age; one even had a baby strapped to her.
The Islamic State claimed responsibility for two suicide bombings that killed more than two dozen people in Baghdad on Thursday.
Mark Rudd, a member of the infamous Weather Underground who later came to regret the group's bombings, told us that "anyone advocating political violence is either very stupid or a cop (or both)."
The government has already launched a series of police raids and bombed the Islamic State in Syria, but what's next?
Nearly a year after a suicide bomber killed at least 57 people at a volleyball match in Paktika, Afghanistan, a match in the province was the target of another bombing.
A coalition of human-rights groups said the 15 people arrested were mostly students and rights defenders in the 20s and 30s. The government has so far released no evidence directly linking them to the ELN.
Initial evidence suggested the National Liberation Army was behind the Thursday explosives at two pension offices in Bogota that left 10 people injured, President Juan Manuel Santos said. But the ELN has not yet claimed responsibility.
Gunmen burst into guests' rooms overnight, the third attack on a guesthouse in as many weeks in Afghanistan. Violence has surged since the Taliban launched its spring offensive in April.