By Lateef Mungin
Two car bombs targeting Christians killed at least 38 people in southern Baghdad on Christmas.
In Afghanistan, two rounds of "indirect fire" hit the U.S. Embassy compound in Kabul, but no one was hurt.
The incidents highlight the security challenges with which both Iraq and Afghanistan are grappling.
Both countries have had a heavy U.S. military presence until recently.
The departure of U.S. forces from Iraq has done little to curb the near-daily cycle of violence. In Afghanistan, U.S. and Afghan officials are working on an important security pact to outline the future of American troops in Afghanistan.FULL STORY