The Congressional Research Service recently issued
a report that is of interest to Public Safety Dive
Teams providing port security and homeland defense.
Check out the attached hyperlink:

As FYI, Dive Rescue International offers a Special
Marine Operations program designed to teach PSDs the
fundamentals for hull and pier search. A "sample"
brochure for this specialized training program is
available at:

Call 800-248-3483 if your team has an interest in
taking this training or hosting a homeland security
PSD program in your region.