My mom just sent me this from the YTH yahoo group:
This past weekend K lost her beloved Belfast's Angel Kisses to a blockage and rupture from those "mini Greenies" that we have all been inundated with emails about the past month. According to K, it was one of the most horrible events in her life and she begs everyone to not give their precious little Yorkies any of this product whatsoever. She is not the only one saying this in these past few months, so I beg us all to revisit this topic and be careful once again. It turned out to be a $2400.00 episode and the outcome was another death of one of our little treasures. Please everyone, let's try and get to the bottom of this product and see what we can do to let the company know what is happening to our little ones.
This was from a while ago.Thought you would want to read it. I don't give them to Tommy so it don't make any difference to me. Just thought I would help out some.

If you go to the top of YT page there is a place you can search type in greenies and you will find the rest of there post. It is under WARNING CONCERNING GREENIES!