In an exclusive interview, US Treasury Secretary Jack Lew tells NDTV Profit that he believes that the recovery in US is not fragile though he remains concerned about the pace of growth in other parts of the globe. He says the US will push back very hard when it sees countries acting unfairly on currencies. He remains optimistic on India and hopes that reforms will make investment environment more attractive here. His message to Finance Minister Arun Jaitley is to give more clarity to investors on policies.