In this Thursday, Sept. 10, 2015 photo, Mohammed al-Haj checks Germany’s map on his cell phone, as he approaches the northern Greek village of Idomeni, on the bus from Athens to the Macedonian border. With the new Greek SIM card he’d bought for his smartphone, he had access to a world of other Syrians through WhatsApp, constantly exchanging information about the journey ahead. (AP Photo/Santi Palacios)