flimsy skiffs. but behind the pictures, there is a highly organized plan that is run with military precision. i was actually in mambasa kenya, and learned how these pirates can get on board huge ships, some of the size of the empire state building. reporter: pirates will get close in the dead of night to an emerging ship like this one. they approach it, they look for one but move slowly and is kind of low. they throw a rope with eye hook or a ladder, climb up onto it. reporter: their skiffs have powerful engines, weapons, gps navigators, extra fuel. tim hart is a somali pirate expert who tells me that pirates are expanding their range that they re attacking deeper into the indian ocean using motherships which can support the smaller skiffs. motherships are mostly low-tech like this one. or high end, pirates captured