Pirates and the Tsunami- bad mixture?

A. E. Brain points out what may be a curious by-product of the tsunami - a decrease in piracy in their notorious hotbed of activity, the Malacca Strait.

Aceh has long been reputed to be the home of some of the pirate bands and much of the coastal area (and harbors) there are no more-limiting pirate havens and bases of operation. (Update: Interesting post here)

It could also be the pirates have turned to ripping off aid supplies and haven't felt the need to work as hard at their sea-going trade. We'll have to watch the trend lines.

Update: On the other hand, the latest ICC-CCS (International Chamber of Commerce - Commercial Crime Service) Piracy Report reports:

23.01.2005 at 0340 LT at Panjang port, Indonesia.
Three robbers armed with long knives boarded a tanker at berth. D/O raised alarm and crew mustered. Robbers jumped overboard and escaped empty handed in a speedboat.

Here's a map with arrows pointing to the Aceh area and to what I gather is the Panjang area.