I remember an attack on a cruise ship recently, off Africa I think, ship hit by missle, don’t know wether it was pirates or terrorists, but they were sent packing by a “cannon”, onboard the liner, which blasted the rascals with sound waves.
There really isn't much difference, aside from the terrorist does his thing to advance a cause. Of course,trusts has to raise money somehow, and piracy has been profitable for millennial. Aside from the romance of Long John Silver, Blackbeard or even Captain Jack Sparrow, all a pirate is is a stickup man with a boat.
Read the article.