France vows 'merciless' response after attacks kill 129

By Ingrid Melander and Marine Pennetier PARIS (Reuters) - An angry President Francois Hollande on Saturday promised a "merciless" response to a wave of attacks by gunmen and bombers that killed 129 people across Paris, describing the assault claimed by Islamic State as an act of war against France. Some 40 more people were killed in five other attacks in the Paris region, including a double suicide bombing outside the Stade de France stadium, where Hollande and the German foreign minister were w