GM crop trials have been given the go-ahead in Ireland. Ella McSweeney travels to Teagasc (Ireland's semi-state agricultural authority) where the trials will be conducted. She talks to scientist Dr John Spink http://www.agresearch.teagasc.ie/oakpark who shows her the site where the GM potatoes will be planted. She also talks to Gillian Westbrook @gillianiofga of http://iofga.org and Wicklow farmer Michael Keegan http://www.waterfallfarm.ie/ @waterfallfarm