How can americans invest money if there's hyperinflation....us d vs can d 2006 1.14 now 1.02 12% about?

in 2006 the us dollar could buy 1.14 canadian dollar....in 2007 the us dollar could only buy 1.02 canadian dollar....what's going wrong here....america better get their act together or our money is going to be just as good as confederate money after the civil war......what should american invest in if the CD's only pay 6% and our inflation is much greater than that