Airships potential????

Ok here’s my query. having just finished watching a documentary about USS Macon, the flying aircraft carrier. I was wondering, what with all the modern day technologies and smarter materials would a modern day version of this be plausible?? and what would be the tactical uses of such a vehicle. i.e. floating carrier or fuel depot like on the film stealth?

for any 1 wondering what USS macon is!

http://en.wikipedia.org/wiki/USS_Macon_(ZRS-5)