and why sardinia is running out of poor man's caviar. in 1989, two northern irish policeman were shot dead in an ira and bush. the irish government set up a tribunal to investigate the death, a move they may well now investigate. the investigation has touched a raw nerve in the country's past. irish police are suspected of colluding in the attack, and allegations have surfaced that british intelligence was aware of the plot. quite to these men served in the royal constabulary -- >> these men served in the royal constabulary. there was a period of sectarian attacks between protestants and catholics. harry green is especially missed. >> he was quiet and reserved, although he had a fantastic sense of humor when it came to boosting and morale. >> he was respected teacher in the force. >> he did not need to be severe. that was the unique thing about him. he did not need to be harsh or severe. >> the two senior officers knew they topped the ira's lists of targets. after all, many others had been killed before. >> my brother was murdered. every