Obama vows to hunt down extremists
President Barack Obama vowed on Monday to hunt down extremists wherever they plot attacks against the United States as Al-Qaeda claimed it hatched the attempt to blow up a US-bound airliner on Christmas Day.
US President Barack Obama on Wednesday denounced what he called a ``barbaric terrorist attack'' on Israelis in Bulgaria, reaffirming unshakable US commitment to Israel's security, APA reports quoting Xinhua.