Nairobi Attack Reveals Al-Qaida’s Influence in Horn of Africa

The attack by al-Shabab militants on Nairobi's Westgate shopping mall has raised fears that the group is broadening its aim beyond winning control of its homeland, Somalia. Security analysts say al-Shabab has morphed from a regional militant group to a terrorist organization closely aligned with al-Qaida. Henry Ridgwell reports for VOA from London.