Who knew? It turns out the biggest threat to the Canadian economy and jobs is not collapsed global financial institutions, weak markets, lack of innovation or declining infrastructure. No -- apparently the clear and present danger Canada suddenly faces is "Buy American." As if out of nowhere, Buy American polcies are at the top of the agenda for the Harper government, premiers, business lobbies and the media. It matters little that the Buy American provisions of the recent Obama stimulus bill are much the same as those first instituted way back in 1933 and strengthened by the Reagan administration in the 1980s. It's now all hands on deck to stop the Americans from insisting that U.S. jobs be created when U.S.