Authorities in Kenya say at least 29 people were killed in a series of attacks by Al-Shabab extremists from neighboring Somalia. One Kenyan official said the extremists "went around shooting at people and villages indiscriminately." For the latest developments, Heidi…

A new National September 11 Memorial Museum commemorates both the 2001 attacks and the 1993 World Trade Center bombing. At each turn, exhibits recount chilling and heartbreaking moments from that September day and honors the victims with portraits of each…