Al Qaeda terror group posts video message threatening attacks in Germany . U.S. officials urge their citizens in Germany to keep low profile and be wary . U.S. 's interior ministry report increase in threats by Al Qaeda earlier this month . Message criticizes Chancellor Merkel over wars in U.S. and Germany .
Al Qaeda terror group posts video message threatening attacks in Germany . U.S. officials urge their citizens in Germany to keep low profile and be wary . Germany 's interior ministry report increase in threats by al Qaeda this year . Message criticizes Chancellor Merkel over wars in Iraq and Afghanistan .