A fascinating article at the Spiegel Online sets out the evidence that the PLO worked with Neo-Nazis in Germany:
The men who were arrested in the Munich house of former Waffen-SS member Charles Jochheim late on Oct. 27, 1972 were armed like soldiers on their way to the front. In one suitcase, police found three Kalashnikov automatic rifles, six magazines, 174 rounds of ammunition, two pistols, a revolver and six Belgian-made hand grenades.
The two men who were arrested were also carrying other weapons. Wolfgang Abramowski had weapons hidden in his waistband, while his accomplice, Willi Pohl, was carrying two pistols and a hand grenade, according to a Munich police investigative report.
A fellow member of a right-wing extremist splinter group calling itself the “National Socialist Fighting Group for a Greater Germany” had tipped off the police about Pohl and Abramowski. The two men allegedly planned to use the weapons to free a fellow extremist who was in prison, but investigators soon questioned whether this story was true.
Among the documents Abramowski and Pohl were carrying was a threatening letter to a Munich judge tasked with clearing up one of the most shocking crimes in postwar German history: the massacre at the Munich Summer Olympics.
On Sept. 5, 1972, Palestinian militants with a Palestine Liberation Organization (PLO) terrorist group called “Black September” took nine Israeli athletes hostage and demanded the release of several hundred Palestinians from Israeli prisons. When the police attempted to free the Israelis at the Fürstenfeldbruck military airport, where they were being held in two helicopters, the terrorists murdered all of their hostages. A police officer also died in the firefight. Three of the Palestinians survived, and the judge to whom the letter found in Pohl’s and Abramowski’s luggage was addressed was in charge of the case against them.
In the letter, Black September threatened to retaliate against the judge “if he continues to allow Israel intelligence agents to participate in the interrogations of the Olympic terrorists.” An examination of the weapons seized from Pohl and Abramowski proved that this was no joke by right-wing extremist copycats.
So, the PLO worked with the Red Army Faction and Neo-Nazis. Rather than this being some sort of relief for extremist leftists, it just shows how the far left and far right become almost indistinguishable in their hatreds.