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PHILADELPHIA -- Former FBI director Louis Freeh is promising a thorough, independent investigation into policies and activities at Penn State that relate to the child sex-abuse allegations against former assistant football coach Jerry Sandusky.

Freeh said Monday that his investigation will go beyond the timeframe laid out in a grand jury report released earlier this month. The report alleges a series of sexual assaults by Sandusky, some on Penn State s campus.

Freeh vowed to investigate activities stretching back to the mid-1970s.

Retired Air Force Col. and astronaut Guion Bluford will be part of the investigation. Bluford is a 1964 Penn State graduate.

Sandusky has denied sexual contact with children but acknowledged showering with boys and embracing them.

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