Is rice and flour scarce in the USA?

We have all heard the unfortunate stories about the major rice shortage in the Asian world.  Rice suppliers in this country assure us there is no shortage of supply in the USA.  But …

Is it possible that because the price of rice on the world market has increased 150% since January, that US growers are exporting our rice to take advantage of the higher price?  Thus, creating a shortage in the US?  Would US rice growers do that to it’s own people?

Your comments are always welcome.