A couple readers wonder if this thing might not be a SEAL boat as pictured on Global Security.
I personally wonder if it might not be part of a supersecret naval project (perhaps a stealth snorkel, but the Bothan spies haven’t made their report yet), and that we’re only seeing the very tip of the iceberg:
Click the image to see what the Navy might be up to. If you dare.


I’ll vote for: either its an automated rubber ducky release device or a an optical reciever/ transmitter. http://www.freepatentsonline.com/5038406.html