I'm not sure who leads anyways. Stem cell research happens in quite a few EU contries for years and years. I happen to know one personally.

Just today in the papers that scientist holland have cured mice with brest cancer with the help of donor stemcells.

>Looks like the EU has followed the US lead.
>
>http://www.washingtonpost.com/wp-dyn/content/article/2006/07/24/AR2006072400329.html