Animal Enterprise Terrorism Act - Rewrites federal criminal code provisions regarding animal enterprise terrorism to prohibit anyone from traveling in, or using the mail or any facility of, interstate or foreign commerce for the purpose of damaging or disrupting an animal enterprise and, in connection with such purpose: (1) intentionally damaging, disrupting, or causing the loss of property used by or owned in connection with such enterprise; (2) intentionally placing a person in reasonable fear of death or serious bodily injury to that person or a family member through threats, vandalism, property damage, trespass, harassment, or intimidation; or (3) conspiring or attempting to do so. Prescribes escalating penalties.

Authorizes restitution for: (1) the reasonable cost of repeating any experimentation that was interrupted or invalidated as a result of such offense; (2) the loss of food production or farm income reasonably attributable to such offense; and (3) any other economic damage, including any losses or costs caused by economic disruption, resulting from such offense.