Northrop Grumman is building one for the Army, called the LEMV. It had its first flight recently.

http://www.wired.com/dangerroom/2012/08/army-spy-blimp/

I am not sure if the aircraft in the article is actually light than air or if it is a hybrid but I can assure you that hybrid airships are in no way shape or form vaporware. The US Military is currently developing multiple models and her is a recent video of one that can stay in the air for 21 days with a 1 ton surveillance package. Note the difference between these and normal airships though, they are not 100% buoyant in air and require active thrust in order to fly with a somewhat aerodynamic body.

http://www.youtube.com/watch?v=R1G-L7qvTKI

I was surprised to see the article mention that they'll be going for flight testing later this year, given that the only picture accompanying the article is a rendering. However, if you go to their site, they have photos and videos[1] of working airships. The cabin is tiny though, with room for only the operators (these may be the cargo ships mentioned in the article, rather than passenger vehicles).

[1]: http://www.aeroscraft.com/#/video/4565658106

Yeah, reminds me of CargoLifter: http://en.wikipedia.org/wiki/CargoLifter

Though maybe it will work out this time, who know. It’s not like this is some sort of earth shattering innovation, so whether it works or not seems pretty unimportant to me.

Is this a pun?