VIDEO: 9/11 and the price of protection

Security spending in the U.S. has surged since the 9/11 attacks, but is the country any safer?

As the 10th anniversary of the 9/11 attacks nears, CBC's AdrienneArsenault talks to people who have tried to document the size and the scope ofthe country'ssecretivecounterterrorism apparatus, and looks at whether the results of the increased spending have been worth the growing cost.