The campaign against Walker intensified in 1965 when Colin Jordan took to the stage of a public meeting addressed by Denis Healey, who punched Jordan. Membership of the group fell to almost nothing overnight, after the arrest of several members accused of burning synagogues and convictions for such incidents in Clapton, Ilford, Bayswater and Kilburn. Even Dior was imprisoned for such an attack in 1968 and in all during the 1960s, NSM supporters organised 34 arsons attacks against Jewish owned buildings. By this time Dior's marriage to Jordan had ended and as a result her funding of the NSM had ended.