The principal law enforcement reasons for the U.S. State Department to deny
or revoke a passport are the existence of (1) a valid federal or state felony arrest warrant; or (2) a
criminal court order, condition of parole or condition of probation that forbids departure from the United States (See 22 C.F.R. 51.60-51.62).
From what I have read elsewhere, passports remain the property of the U.S. government and they claim the right to revoke them after charging someone with a felony.