involvement in the Vietnam War. On one occasion, in 1969, four students who were protesting against the war attempted to blow up the flagpole at Waitangi treaty grounds, the site of Waitangi Day celebrations. Anti-Apartheid protests In 1976 the Hutt Recreation Ground in Lower Hutt hosted the Men's Softball World Championship. The tournament was controversial due to the participation of Apartheid era South Africa. Prior to the tournament start, an opponent to South Africa's involvement, planted an incendiary bomb in the middle of the ground's softball diamond which exploded and damaged a 10 metre radius. A caller then rang the Wellington newspaper, The Dominion, and claimed responsibility. Wanganui Computer Centre bombing On 18 November 1982, a suicide bomb attack was made against a facility housing the main computer system of the New Zealand Police, Courts, Ministry of Transport and other law enforcement agencies, in Whanganui. The attacker, a punk rock anarchist named Neil Roberts, was the only person killed, and the computer system was undamaged. Wellington Trades Hall bombing On 27 March 1984, a suitcase bomb was left in the foyer of the Trades Hall in Wellington. The Trades Hall was the headquarters of a number of trade unions and it is most commonly assumed that unions were the target of the bombing. Ernie Abbott, the building's caretaker, was killed when he attempted to move the suitcase, which is believed to have contained three sticks of gelignite triggered by a mercury switch. To this day, the perpetrator has never been identified. It was revealed in a 2019 episode of Cold Case that police had a prime suspect, a retired marine engineer with explosives expertise and anti-union attitudes; however the evidence was considered circumstantial and insufficient to lay charges. Before her death in 2016, union leader Helen Kelly (who knew Abbott) said she felt the bombing was a result of the "anti-union hysteria" created under the then government of Robert Muldoon. Rainbow Warrior bombing On 10 July 1985, the Greenpeace vessel Rainbow Warrior was sunk by the French foreign intelligence service, the Direction Générale de la Sécurité Extérieure (DGSE). Greenpeace had planned to use the Rainbow Warrior as part of protest efforts over French nuclear testing at Moruroa, and DGSE divers sank the vessel by detonating mines against its hull while it was berthed in Auckland. The crew left the ship, but one person, photographer Fernando Pereira, was drowned when he