Her sister ship is the USNS Sacagawea.
http://en.wikipedia.org/wiki/USNS_Sacagawea_(T-AKE-2)
Complement: 49 military, 123 civilian
Electronic warfare
and decoys: Nulka decoy launchers
Armament: 2–6 × 12.7 mm machine guns
or 7.62 mm medium machine guns
Aircraft carried: two helicopters, either Sikorsky MH-60S Knighthawk or Aerospatiale Super Puma
OK ... that's armed. Technically. If the pirates had pressed their attack, Ma Deuce would have ruined their day.
I'll agree with making distance and calling in the professional trigger-pullers.
That said, maybe one of those helos could be replaced with a Cobra?