I have had several clients who have had difficulties with shipping their sperm here to teh US due to the new FDA rules.  This article explains how this is affecting several banks.  See Associated Press article that follows:

LONDON - For American parents looking for donor sperm to produce blond, blue-eyed Scandinavian babies, the search just got a little trickier.

In May 2005, the U.S. Food and Drug Administration decided to ban sperm from any European countries with exposure to mad cow disease, effectively striking off donors from Denmark to the United Kingdom. While some sperm banks have had enough frozen stocks to cope with the demand, they are now running low.

For complete article, click here: http://www.msnbc.msn.com/id/20891658/