Attacks Across Afghanistan Leave Over a Dozen Dead.

KABUL, Afghanistan -- Attacks in four parts of the country left at least 18 people dead on Friday, including four NATO service members, four Afghan police officers and 10 civilians, signaling the tenaciousness of the insurgency even through the winter. The most lethal episode occurred in the southeast province of Khost, on the edge of the provincial capital of the same name, where a suicide bomber detonated a car packed with explosives near a police checkpoint in a crowded shopping area. [ABSTRACT FROM PUBLISHER]