US authorities 'had been investigating Allen Stanford for 15 years' David Byers, Suzy Jagger in New York, and James Bone in Antigua American authorities have been suspicious of Allen Stanford's financial dealings for 15 years but only accelerated their investigation after the Bernard Madoff fraud was exposed, it was claimed today. As investigators continued to hunt Mr Stanford and the $50 billion (£35 billion) of assets connected to him, a financial expert said that the Texan had been on "everybody’s radar" for more than a decade. The claim, made by the journalist and author Jeffrey Robinson, came as a link...