Go here, to the Live Marine map:
[link to www.marinetraffic.com]

Click on the ship...a window will open and give you details:
Flag: USA
Ship Type: Unspecified
Status: Underway
Speed/Course: 5.5 kn / 270˚
Length x Breadth: 0 m X 0 m
Draught: 5.5 m
Destination: DEEP WATER HORIZON
Received (604): 0h 5min 4s ago
(AIS Source: REMAS2)

LOOK...destination: Deep Water Horizon
BUT THE SHIP IS HEADED AWAY from DWH

Now, inside that box with the info, you can track where the ship has been....strange trip that it took.

You can do this with ALL of the ships.
You can see who is going where, and where they came from.

Where is everyone going?
Where do they go back and forth between?

I think we can find out what they are doing.