Yes, Virginia, there is a blimp in Navy inventory....and it's heading to Mobile to assist in the Gulf Oilspill recovery efforts.
100706-N-XXXXX-001 Navy Hand Out File Photo (Undated) of the MZ-3A manned airship, Advanced Airship Flying Laboratory, derived from the commercial A-170 series blimp. The Navy airship is a high endurance low fuel alternative to fixed wing or rotary aircraft. providing extreme utility in airborne patrol missions where endurance and communications capabilities are required. (U.S. Navy/Released)

100706-N-XXXXX-001 Navy Hand Out File Photo (Undated) of the MZ-3A manned airship, Advanced Airship Flying Laboratory, derived from the commercial A-170 series blimp. The Navy airship is a high endurance low fuel alternative to fixed wing or rotary aircraft. providing extreme utility in airborne patrol missions where endurance and communications capabilities are required. (U.S. Navy/Released)