rtoz writes with this snippet from the BBC: "EU member states have agreed in principle to ban imports of Iranian crude oil to put pressure on the country over its nuclear programme. ... The US, which recently imposed fresh sanctions on Iran, welcomed the news. ... The Iranian state gets more than half of its revenue through the export of crude oil, says the BBC's James Reynolds. If Europe does stop buying, Iran will have to turn to countries in Asia to replace its lost trade, who will demand a discount, he adds."