Tue 11 Nov 2002Second-level teacher union merger soughtA new push to create one union for 25,000 secondary teachers is under way after the failure of the ASTI pay campaign.Members of the union are seeking support for a merger between the 17,000-member ASTI and the 12,000-member TUI. An amalgamation, they say, would create the fourth-largest union in the State and could become a reality "within the next year or two".