1)It is very difficult to resolve the international problem of terrorism for several major reasons.
Terrorists usually don't claim responsibility for their actions until the fuse is lit, it's not a case of Jack The Ripper sending an ear to the cops and warning them who his next victim will be. Terrorists usually do claim responsibility for their actions after the media is aware that something happened, this gains recognition for their cause, which is often the reason they resort to terrorism in the first place. These groups are often underground and individuals rarely step forward, how can you arrest an entire group that you can't touch?
Governments endorsing terrorist acts and providing a safe house for them once they're on the run just adds to the problem. Hijackers can take their hostages, get the ransom and fly the plane to the country of their choice. That country is usually ready to welcome the criminal, for a small cut of the ransom. Algeria used terrorism as a business to raise capital. By providing immunity, they became a haven for terrorists. Many Middle Eastern countries resort to terrorism when dealing with other nations. Saudi Arabia sponsors Islamic terrorists to lay siege to Egypt. Terrorism is a means of influencing international relations.
How can you prevent acts of terrorism when those paid to protect the people are among the guilty? The Ku Klux Klan is a prime example of police corruption and a government that turned its' back on its' people. Dirty cops and prejudicial governments provided the fuel that burnt black churches of the Southern States in the past . Many white citizens were not members of the Ku Klux Klan, but most whites were reluctant to take a stand against the Klan until the KKK's acts of violence began to threaten whites who were not white supremacists. When whites began to oppose the Klan, they went underground and were thought to have disbanded but they arose again before the first war and once more...