Over the years, New Delhi has sent some of its best to Washington to explain India, a country of multitudes and mysteries not intuitively understood in the West. Some excelled, some succeeded more than others, while some got lost between Capitol Hill and the White House. It's a tough assignment - policy volcanos erupt regularly, US bureaucracy is demanding and opinion-makers hard to satisfy. One critical article in Foreign Affairs and it's 'Delhi, we have a problem' of Apollo 13 proportions.