In May 2003, Thomas O'Brien, then bishop of the Diocese of Phoenix, admitted to sheltering at least 50 priests accused of sexual abuse, often shuffling them around to parishes across the state. O'Brien's admission ... acknowledged he allowed Roman Catholic priests under my supervision to work with minors after becoming aware of allegations of sexual misconduct." Thirteen years later, in a lawsuit filed last September, O'Brien - now bishop emeritus - was accused of sexually abusing a grade-school boy. In recent months, [reporters] have uncovered scores of allegations involving 14 Catholic priests on Guam, where a former altar boy's accusation last summer that Archbishop Anthony Apuron sexually abused him in the 1970s has prompted other revelations. Abuse cases also have roiled Catholic parishes elsewhere in the nation, sometimes decades after evidence of the crimes first emerged. In the O'Brien case, an Arizona man sued, claiming repressed memories resurfaced two years ago. The lawsuit accuses O'Brien, now 81, of sexual abuse from 1977 through 1982. The suit names 60 other Roman Catholic priests or church employees, dating back to the 1950s and alleges a cover-up. The diocese itself eventually exposed some priests as part of an agreement with Arizona prosecutors in the early 2000s. At least two of the priests fled the U.S. and remain at large, and a substantial number are now dead.