The plan tackles the problem on several levels - intelligence gathering and warnings; security of borders and transport; domestic counter terrorism; protecting critical infrastructure; and faster response.
One proposal is to set up "red teams" to act as the enemy, seeking weak spots and organising theoretical attacks.
What?! We can't give them ideas! They need us to point out targets to them! They need our brainpower, or they wouldn't be able to figure out what to attack!