<p>Shares in the diet company Weight Watchers more than doubled in value on Monday after media mogul Oprah Winfrey announced she was taking a 10% stake in the firm. Winfrey joins the company's board at a difficult time, when it's facing falling revenues and cutting costs. Also today, why Ireland has decided a one-cent coin just isn't worth it.</p><br /><br />Visit our website:<br />http://www.france24.com<br /><br />Like us on Facebook:<br />https://www.facebook.com/FRANCE24.English<br /><br />Follow us on Twitter:<br />https://twitter.com/France24_en
