Nairobi attack shows attempts to neutralize Africa's terror threat have failed
The terrorists used ammunition with such merciless abandon their automatic gunfire tore through the Nairobi dawn like a chainsaw in long screaming bursts. Grenade after grenade, detonations thumped among the buildings.
How could a gang of five -- one suicide bomber and his four gunman accomplices -- get into the heart of the Kenyan capital so heavily armed, and with what seemed like unlimited ammunition?
The answer lies along Kenya's border with neighboring Somalia -- the home of Al-...