An Israeli woman and her son take cover as a siren sounds during a rocket attack fired by Palestinians militants from Gaza, in Tel Aviv. Oded Balilty/AP

An Israeli woman and her son take cover as a siren sounds during a rocket attack fired by Palestinians militants from Gaza, in Tel Aviv. Oded Balilty/AP

A masked armed separatist militant poses for a photographer near the site of the crash of a Malaysia Airlines plane carrying 298 people from Amsterdam to Kuala Lumpur in Grabove, in rebel-held eastern Ukraine, on July 19, 2014. Dominique Faget/AFP

A masked armed separatist militant poses for a photographer near the site of the crash of a Malaysia Airlines plane carrying 298 people from Amsterdam to Kuala Lumpur in Grabove, in rebel-held eastern Ukraine, on July 19, 2014. Dominique Faget/AFP