The power of the executive to detain terrorists without trial for preventive reasons would come in handy in the investigation of anti-choice terror cells in the wake of the assassination of Dr Tiller. If you even knew the assassin, you're probaably a terrorist and eligible for preventive detention. You can't be too careful, so if in doubt detain, dtain, detain. Those FEMA camps will come in real handy, too.
Thanks to the ability to use "enhanced interrogation techniques", which the government would have to do to prevent any ticking time bomb scenario from unfolding, the confessions and the informing will come quickly. The government will, if it deploys all the tools the prior administration claimed the authority to use, can rid us once and for alll the anti-choice domestic terror movement.