By Robert Mackey October 5, 2010 5:17 pm October 5, 2010 5:17 pm A recent video report from Britain’s Channel 4 News on young people in Ulster who support the armed struggle for a untied Ireland abandoned by the I.R.A. in the 1990s. In a phone call to The Derry Journal, a newspaper in Northern Ireland, dissident paramilitaries from a group that calls itself the Real I.R.A. claimed responsibility o