DUBLIN, Dec 29 (Reuters) - These are some of the leading stories in Ireland's newspapers on Friday. Reuters has not verified these stories and cannot vouch for their accuracy: THE IRISH TIMES - Sinn Fein president Gerry Adams will later on Friday begin the process of changing his party's position on support for the Police Service of Northern Ireland. - A tip-off about a plot to assassinate John F Kennedy with a sniper rifle during his visit as U.S. president to Ireland in June 1963 sparked a massive security alert, with heavily armed police reinforcements escorting his motorcade after arrival at Dublin airport, according to a Department of Justice file in the National Archives released on Friday. IRISH INDEPENDENT - The Irish government could barely afford to pay fares for a 1976 visit by the Prime Minister to the United States. Things were so bad that plans for an expensive present to the Americans were ditched to save money for the fares of Liam Cosgrave and his party. - The Electricity Supply Board has signed a 37 million euro ($48.64 million) deal to purchase the power output from a wind farm in County Tyrone over the next 15 years. IRISH EXAMINER - Shares in Irish firms listed on the ISEQ 100 <.ISEQ> hit an all-time high on Thursday, with the index closing at 9,444.81. Looking for more information from local sources? Reuters Business Briefing has five Irish sources including Irish Times. For details of the product please call your local help desk <PHONE/HELP>.