Ruthlessness is the only thing that works with terrorists. Take these people out at home when they are eating with their family and kill the family too. The Russians have a name for it I forget that name but it works.
You have a winning formula :-)
Yes, I remember hearing that the Russians would go out and and abduct the terrorists family members and send them back to the terrorists in small pieces, in short order the Russian hostages were released. Don't know if it is true or not.