"Canada–25% Kazakhstan–24% Australia–20% Russia–14% Uzbekistan–4% Malawi, Namibia, Niger, and South Africa–10% Brazil, Bulgaria, China, Czech Republic, Germany, and Ukraine–2%"

So we can toss in the blood diamond / African blood uranium comparison, 10% of American uranium comes from Africa.

But we also have the despotic nation of Russia, so by using uranium you're in some part enriching that anti-liberty mobocracy.