In theory, I agree with you. We should not give in to ransom demands. On the other hand, if you want to get agents into a country, you need to show them that you can also get them out. Its a dirty business, and morals and principles can often take a beating.
At this point, I htink the only agents who can get anything out of these fiends are clandestine ones, particularly those are from the indigenous population and willing to sell information to us.
Ultimately, we will have to take out their nuclear weapons, or help the Indians do so.