Pr00ne,
Usual fluffy argument you make....as you completely disallow the folks on scene the capacity to determine when to cut loose with the fireworks. The sad fact there are so many hostages being held and the failed policies that allowed that to happen only plays into the hands of the Pirates.
I would suggest the World's Spec Ops community could begin to sort that situation out following a blanket warning from the heads of states of the folks being held. Make it very plain.....harm a hostage and reap the whirlwind....no quarter given. The politics of that would begin to bring heat on the Pirates from those that currently thrive on the money this enterprise brings in. If it were death and destruction instead of the money....I suggest Pirates would become persona non grata in the villages, towns, and ports.
Pirates are theives and wish to be around to spend their booty....getting killed puts paid to that amibition. The key is the absolute certainty of that result that shall put an end to this business.