To keep America free from terrorist attacks in the post 9/11 world, it is imperative that the next president have an acute understanding of radical Islam and the need for a forceful response that extends beyond mere criminal prosecution, said former U.S. Senator Rick Santorum.

He made the comments at a debate focusing on the 2008 election.

The Pennsylvania Republican also credited the Bush administration for pursuing effective counter-terrorism measures, re-affirmed his vote in favor of the Iraq war and suggested that Iran could be on verge of inciting a major conflict...