WTF??? Helloooo! They do that already!
Maybe they should allow people who have visited the UK over the past 10 years to donate blood. Currently people who have been to the UK are not allowed to donate because they might have been exposed to Mad Cow disease.
I don't donate blood because I have some chronic genetic or other condition that causes elevated bilirubin. I could donate blood, since this is not listed as a preclusion, but I'm smart enough to not do it because nobody knows why my blood is this way.
What ever happend to accepting what's best for others?
Since October 2001 no one who has spent 6 months or more in Europe since January 1, 1980, can give blood, because of the fear of mad cow disease. I don't know if they have a single case of anyone in the U.S. contracting mad cow disease from a blood transfusion from someone who had spent time in Europe...or of anyone coming down with mad cow disease whose only risk factor was having spent time in Europe in the 1980s. It would be much safer to allow people from this category to donate blood than to accept blood donations from male homosexuals.