Euro plunges as ECB official pledges to speed up bond purchases

``The single currency extended Monday's decline after Executive Board member Benoit Coeure said the ECB will increase purchases under its quantitative-easing program from 60 billion euros ($67 billion) in May and June, ahead of an anticipated drop-off in market liquidity. The euro was already weighed down by speculation Greece's banking system is weeks away from insolvency, and fell versus all 16 of its major peers.''