Roboboat?

GB-Challenger Class Craft (Photo from Radix-Marine)

From The New York Times:

In recent years, maritime shipping companies, private security firms and navies around the globe have pondered the problem of high-seas piracy off Africa’s east coast, where more than 150 merchant ships have been attacked by small craft in 2009 alone. What to do? How to thwart a menace that can resemble a fishing boat? And across an area so vast?

It was inevitable that weapons manufacturers and dealers would weigh in. Now one has. Imagine an aquatic drone, an unmanned boat that could patrol the waters off eastern Africa and allow threats to be assessed and engaged by remote control.

Read more .....

My Comment: If you want to produce a suicide boat .... something like this would be perfect.