If ever taken hostage, it is good to remember that the hostage taker(s) / terrorists want you alive or you would not be a hostage. Yes, you should plan to escape if possible, but not give so much resistance as to make the captors decide to get rid of the problem and just kill you.
Here is a page from the CIA website with some interesting information regarding terrorism.
For those who would like official FBI information about Terrorism.
We need to be very careful here. What do military and civilian laws state? This could be a very slippery slope.