Do you think that the language change in Miami, Florida indicates the future of the United States?

I do not think that Spanish is about to become the
most-spoken language in the United States.  I think that people who worry about that are
misreading the general trends that happen with immigrants to the
US.

The assumption behind this concern is that Hispanic
immigrants will not assimilate and become American.  They will, instead, keep to
themselves and remain Spanish-speaking.  Over time, the thinking goes, the US will
become a Spanish-speaking country.

I do not see this
happening.  Immigrants who come to the US always learn to speak English because English
is the language of economic opportunity and of power.  Even if immigrants themselves do
not learn English, their children do because that is how to fit in to the larger
culture.  Even in parts of America where the population becomes more Hispanic, English
will remain the most spoken language.