Walter became better known to the general public after cameras recorded him being forcibly ejected from the annual Labour Party Conference in Brighton on 28 September 2005, aged 82, for shouting "nonsense" during Jack Straw's speech in which the then Foreign Secretary extoled the virtues of the government's role in the Iraq War.

As Jews, his family suffered persecution under the Nazis, and in 1937 his parents arranged for the teenaged Walter to move from Frankfurt to Britain (this was before the start of the Kindertransport programme).

During World War II, Wolfgang volunteered to serve in the Royal Air Force but was rejected due to a physical condition.

Wolfgang was a founder member of the Campaign for Nuclear Disarmament (CND) in 1958, participating in the group's first march to Aldermaston.

Leading a revival of the Aldermaston March in 1972, Wolfgang asserted that there was a 50–50 chance that nuclear weapons would be scrapped before the world was destroyed by them.

[2] Several conference stewards, who were on alert for any attempts to disrupt the speech, then picked up and removed Wolfgang and confiscated his security pass, briefly detaining him under Section 44 of the Terrorism Act 2000.

[3] Erith and Thamesmead Constituency Labour Party chairman Steve Forrest, who was sitting nearby, was also removed for voicing his objections to Wolfgang's treatment.

[4][5][6][7] His expulsion, and the use of anti-terrorism legislation, was condemned by both the political left and right as symptomatic of an increasingly authoritarian tendency in the Labour Government and the gradual erosion of civil liberties.

In 2006, he was chosen and elected as one of the Grassroots Alliance slate of candidates standing for election to the Labour Party's National Executive Committee, stating that he would be campaigning on a platform of opposition to the war on Iraq, rejecting the Royal Navy's Trident missile program, and making the Party more democratic.