The French Secret Service sabotaged a Greenpeace ship interfering with a nuclear experiment, and the Mossad probably sabotaged a Gaza flotilla boat. My suggestion: guard your ships and try to catch a saboteur. Then take his picture and advertise it over the internet. After that, hand him over to the police.
Donald Trump: Israeli settlement construction in West Bank should 'keep going' (Haaretz)
from the article: Gaza flotilla activists: One of our ships was sabotaged