US Treasury backs dollar

US TREASURY secretary Timothy Geithner says he is not concerned that the US dollar is weakening as a reserve currency, despite recent criticisms from China, Russia and France.<br /><br />&ldquo;I actually don't worry about that,&rdquo; Geithner said in an interview.<br /><br />&ldquo;In part because if you just look at the response of the world...when people are most concerned about risk, generally they want to be investing in the most liquid, safest market,&rdquo; he said, adding that he would keep working towards keeping the dollar strong.<br /><br />Geithner&rsquo;s comments come as France joined other countries&rsquo; criticism of the dollar&rsquo;s dominance. President Nicholas Sarkozy is the first European leader to join with China and Russia, who have called for a new international reserve currency similar to the Special Drawing Rights &ndash;&nbsp; an artificial currency used by the International Monetary Fund.