Absurd- DHS terrorism alerts about vacant ambulances, dams, boats & cyanide!

Lather (keep the fear mongering alive), Rinse (publish warnings), Repeat (invent new threats).

Vacant ambulances:

http://publicintelligence.net/cfix-ambulance-thefts/

Dams: 

http://publicintelligence.net/fbi-water-retention-threats/

Marine transport (boats, ferries):

http://publicintelligence.net/dhs-marine-transportation/

Cyanide:

http://publicintelligence.net/dhs-fbi-cyanide-awareness/