The Bengals have signed 26-year old safety Marvin White.  White played in 13 games (6 starts) for the Cowboys & Lions last season and he had 53 tackles and six passes defensed.  He has played in 40 games (19 starts) in his three years in the NFL and he has made 141 tackles, defensed 14 passes and he has 1 interception.  White spent his first two years in the NFL with the Bengals so they know what they have in him.