[VRWCTexan]

YES - Blown "locks" could keep the Canal out of service and damage the enonomy for many months.

[Alas Babylon!]

Ijaz on Tony Snow's weekend show right now talking about this. Tony asks him (I'm paraphrasing), "Since ships can't travel but a few miles per hour, how is it this is a problem since we can intercept them?" Ijaz answers, "The sheer number of ships out there and the low numbers that are tracked means it could be done (terrorist attack) by decpetion."