Duke Grads Dig Deep: Two former Duke Blue Devils have donated $2 million to the school’s athletics programs. 1991 and 1992 NCAA championship teammates Christian Laettner and Brian Davis, will pay $1.25 million to help fund a Blue Devil basketball practice facility, and $750,000 to endow a basketball scholarship. Laettner and Davis, who were co-captains of the 1992 squad, are partners in Blue Devil Ventures, which is developing a mixed-use project in downtown Durham. Laettner has played in the NBA for 14 seasons, and is now a member of the Miami Heat. [7/30/05]