New Delhi: Insisting that the Sikh community can never forget the 1984 riots, Jarnail Singh, the journalist who made headlines for hurling a shoe at home minister P Chidambaram, today said Prime Minister Manmohan Singh should take steps to ensure justice to the victims. Releasing his book on the 1984 carnage in Delhi, in which an estimated 3,000 Sikhs were killed, Singh said only justice and actio