the ignorance of the press in general about everything is even surpassed by their ignorance of anything military. (caveat i will grant you the naming of the post ww2 soviet reloadable bazooka an RPG (ROCKET PROPELLED GRENADE) was pure advertising genius.)
the AT4 is/was a new version of the M-72 LIGHT AT weapon aka LAW. it is a one shot fire and forget anti tank rocket launcher. it does not shoot a missile it does not shoot a grenade. it shoots a rocket with a HEAT warhead to kill light armored vehicles. try using it on an M1 ABRAMS and you may survive because the crew will be laughing too hard to blow your butt away with a 120mm round.
Thanks bw.