American b-52 bombers involved in training flights over the North were out in force again yesterday. Two of the 14 long-range bombers stationed at RAF Fairford in Gloucestershire took off yesterday morning and flew for three hours. The aircraft are believed to have been involved in exercises over Northumberland on Friday. Security at the RAF base has been stepped up following break-ins by peace protesters. Two of those involved have been charged with damaging a number of B-52 support vehicles. Margaret Jones, 54, of Bristol and Arthur Milling, 57, of Birmingham, were taken into custody after their arrest by Ministry...