The Linebacker was withdrawn from service. I believe that the current solution is the HMMWV based Avenger.
Some times I believe it would be useful to have the idiots at the Pentagon who make decisions like the total clusterXXXX that has been the post cold war US forward AAA situation listen to Iraqi and German verterans of Gulf War 1 and Normandy who can tell them how paralyzing it is to be under relentless air attack.
If you can find a surviving German vet of the Eurpoean campaign, ask him what it's like.
http://en.wikipedia.org/wiki/AN/TWQ-1_Avenger
-Dave