Source of the Weiss coins

Where did coin-dealer Arnold Peter C. Weiss obtain his (not so ancient?) coins? I note that Janon Fisher in the New York Daily News points us in a new direction ("Prominent hand surgeon pleads guilty to selling phony ancient coins to undercover agent", July 3, 2012):

Herbert Kreindler, a Long Island coin dealer who Weiss says sold him the bad pennies, was not charged in the crime.

A company with this name is a member of the International Association of Professional Numismatists (IAPN). Weiss is also a founding partner of an IAPN member numismatic company.

Will the IAPN be investigating how these "toxic" coins entered and circulated in the market?

I also note that the Washington lobbyist who acts for the IAPN has been remarkably silent.

It has been suggested to me by an academic numismatist that there is a possible link with Operation Ghelas that uncovered evidence for fake coins. If this is the case then there are likely to me major implications for some of the large European numismatic traders.