Security forces rehearse for London Olympics

The video discusses the security plan for the Olympics, highlighting the real threat of terrorism, particularly from Al Qaeda. It details the coordination between military and police forces, including exercises on the Thames to intercept suspicious vessels. The message is clear: visitors will be safe, and terror groups should reconsider any plans.

Which groups are identified as the number one problem in terms of security threats?

What is the message to Olympic visitors regarding their safety?