I did, and it doesn't surprise me. At present, though, there is no link between microchipping cats & dogs and cancerous tumors. The tumors that they are discussing are in lab mice and it is a different type of chip.
I still won't put microchips in my pets. I just think it's wrong, IMO.
I guess I should have looked around a bit first. There's a thread right here. Thanks Gingercat! Nice Cats! Hello form right here North of Boston! I'll give it a read.