Subject: File No. S7-19-07
From: John D Corbit, Ph.D.

July 17, 2008

Please end naked short sales of all shares as the law already requires.

Since the DTCC clears all equity trades, they CATEGORICALLY KNOW who the counterparties are that FAIL TO DELIVER. So why has the SEC not subpoenaed from DTCC lists of naked short violators years ago?

Respectfully submitted,

J.D. Corbit, Ph.D.