MERT OZKAN and KINDA MAKIEH A huge earthquake killed more than 2,700 people across a swathe of Turkey and northwest Syria on Monday, with freezing winter weather adding to the plight of the thousands left injured or homeless and hampering efforts to find survivors. The magnitude 7.8 quake brought down whole apartment blocks in Turkish cities and piled more devastation on millions of Syrians displaced by years of war. It struck before sunrise in harsh weather and was followed in the early afternoon by another large quake. "It was like the apocalypse," said Abdul Salam al-Mahmoud, a Syrian in the northern town…