One of the world's most successful investors, Jim Rogers, has told the BBC that the euro is not at the root of the current problems in European economies. Mr Rogers said the euro was good for the world and needed to work, but the main issue was excessive debt. He told BBC World Service Business Editor, Martin Webber, that the situation in both the United States and Europe is serious and getting worse. Full transcript below Jim Rogers: Martin, it's very serious. America is the largest debtor nation in the history of the world and it's getting bigger and bigger by leaps and bounds at the rate of over $1 trillion a ... (full story)