The Art Newspaper has this short piece about this discussion that took place at the Asia Society. See http://www.theartnewspaper.com/articles/Asia-Society-debate:-the-dos-and-don%E2%80%99ts-of-collecting-antiquities/26093
In addition, the Asia Society website has uploaded the discussion here: http://asiasociety.org/video/arts/collecting-ancient-art-21st-century
Meanwhile, as politically correct complaints from archaeologists and over regulation from the US Government have put a damper on collecting Asian antiquities here, China has now surpassed the US as the art market leader. See http://www.coinsweekly.com/en/News/4?&id=1101
Both the Obama Administration and the archaeological community should ask themselves if their efforts have done anything other than to move the trade oversees to the detriment of the public interest.
Addendum: Jason Felch has posted this summary of the Asia Society event on the "Chasing Aphrodite" blog:
http://chasingaphrodite.com/2012/03/23/at-asia-society-antiquities-collectors-describe-climate-of-fear-2/