President Obama has authorized deployment of 350 more troops to secure embassies in Iraq in response to the latest Islamic State video showing the beheading of a second US journalist. A third American health worker has been infected with the Ebola virus after treating patients in West Africa's outbreak. Ukrainian officials are saying progress has been made towards a cease fire between Ukrainian army forces and Russian-backed rebels, but Moscow is denying any truce deal. Japanese PM Shinzo Abe unveils his new cabinet appointments this week, hoping that the reshuffle of ministers will help reform Japan's struggling economy. The latest major US retailer dealing with possible credit card hacks is Home Depot in a breach that could have affected all of the company's 2,200 stores.