Nov. 17 (UPI) -- Larry Summers , former Treasury secretary under President Bill Clinton , announced Monday he is "deeply ashamed" and will step back from his public commitments after emails released last week revealed years of correspondence with the late child sex offender Jeffrey Epstein . Some 20,000 emails from Epstein's estate were released Wednesday by the House Oversight Committee. While the emails revealed numerous exchanges between Epstein and Summers, Summers has not been accused of