Unprovenanced Egyptian artifacts for Sale in Washington, D.C. suburb?

Anti-collector archaeologists have maintained that artifacts without a demonstrable provenance back before 1970 must be considered looted.  They also suggest that any earlier provenance solely based on the say-so of the consignor cannot be trusted.  Thus, one wonders if the archaeological blogosphere will condemn former U.S. Speaker of the House Tom Foley, his wife, and his wife's mother for the sale of these Egyptian artifacts "purchased in the 1960's."  

I certainly would cast no such stones.  Egyptian artifacts have been legally collected for generations.  I think it's wrong to suggest otherwise without proof to the contrary.  But that probably is not the way the self-appointed moralists of  the archaeological blogosphere would see it.