SEOUL – "Nuclear backpacks" carried by North Korean soldiers at Saturday's "Victory Day" parade are unlikely meant to represent miniaturized nuclear weapons and are probably filled with "paper or rags," an expert familiar with the Korean People's Army has told NK News.While South Korean media were quick to interpret the backpacks, pictured above, as representations of miniaturized nuclear weapons, U.S. based North Korean military expert Joeseph Bermudez Jr. rejects this possibility."The backpacks are far too small for atomic demolition munitions (ADMs)," Bermudez said, referring to a family of man-portable weapons developed by the U.S. in the 1960s