How do you buy dollars?

According to this Bloomberg report they claim "investors are buying dollars." How do you do that?

Maybe barnone11967 can tell me?  What's the spot price of a paper dollar?
http://www.bloomberg.com/news/2012-05-10/gold-bulls-weakest-in-month-as-investors-buy-dollar.html 


Did Max Keiser ever think investors would buy DOLLARS and crash both JPM and SILVER?  Well that's exactly what's happening right now:
 




...developing...