Somalia's Shabaab threatens Uganda, Burundi attacks
The al Qaeda-linked rebels have tightened their grip on much of Somalia by joining with a rival group
Afghan Taliban reject UN report on civilian deaths
Taliban brand the report as "fabricated", call it an attempt to cover up U.S. "brutalities"
UPDATE 1-NATO opens probe into deaths of 5 Afghan civilians
Civilian casualties caused by foreign forces have long caused friction between the Afghan government and its Western backers