Terrorism is vague enough that you can define it as "anything that opposes the advancement of the state," which is why it appeals so much to policy-makers, war

Terrorism is vague enough that you can define it as "anything that opposes the advancement of the state," which is why it appeals so much to policy-makers, war hawks, and anybody invested in ever-expanding government budgets. It's also why it frightens and disturbs libertarians so much in that "terrorism" can be used to justify any and all expenditures, including the curtailment of individual rights and freedoms. The USG will be undergoing modernization of national infrastructure over the next 3.5 years and they will be quite forceful about capturing control over critical infrastructure (regardless of whether it's privately owned or not).