For those who didn't get the updated list, here's the current list of terrorist acts you can perform, sorted by importance:
Steal Alfa's money.
Call Alfa and not say anything.
Hijack planes and kill thousands of people.
Perform a series of coordinated attacks resulting in the death of many dozens (Spain, Bali, Mumbai, Iraq, etc.).
Follow Alfa.
Kidnap and execute hostages.
Perform a random act of violence against civilians.