The Burma Campaign had a stark message for British companies trading in the country yesterday: "If there is a crackdown and the regime opens fire, you have paid for the bullets." The Campaign in the UK says up to 150 international companies, including many from Britain, trade with Burma – particularly in the travel, timber, gems and clothing sectors – making a total investment of £1.2bn every year... The campaign…alleged that businesses investing in Burma were not doing so for altruistic reasons, but because they were attracted by employment conditions that could be described as favourable to employers… The most notable British company on the list is the aerospace engine group Rolls-Royce. Last night Rolls-Royce defended its work in Burma…