UK. England. London. Members of the demonstration rally protesting against the Vietnam War listen to speeches from actress Vanessa Redgrave and writer Tariq Ali before they head off from Trafalgar Square to Grosvenor Square to hand in a letter of protest to the American Embassy. The white headbands are a traditional Vietnamese symbol of mourning. This protester seems unsure why he is protesting with his banner about Vietnam and a picture of Che Guavara from the Cuban revolution 1968