 No confirmed source can explain Skorzeny's motives for working with Israel, but he may have craved adventure and intrigue and feared assassination by Mossad.An article featured in "Der Spiegel" on 22 January 2018 raised doubts as to the involvement of Skorzeny in Krug's death, stating that Mossad boss Isser Harel ordered the murder.Like thousands of other former Nazis, Skorzeny was declared "entnazifiziert" (denazified) in absentia in 1952 by a West German government arbitration board, which meant that he could now travel from Spain into other Western countries, on a special Nansen passport for stateless persons with which he visited Ireland in 1957 and 1958.