EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Stranded Iranian migrants sit on rail tracks at the border between Greece and Macedonia in front of Macedonian riot police near the Greek village of Idomeni November 23, 2015. Moroccans, Iranians and Pakistanis on Greece’s northern border with Macedonia blocked rail traffic and demanded passage to western Europe on Monday, stranded by a policy of filtering migrants in the Balkans that has raised human rights concerns. One Iranian man, declaring a hunger strike, stripped to the waist, sewed his lips together with nylon and sat down in front of lines of Macedonian riot police. REUTERS/Yannis Behrakis