I just returned from an extended business trip to Europe. If you haven't traveled there, you might be surprised to learn that English is the unifying language. Very seldom did I run into a social or business situation where the European with whom I was interacting couldn't communicate in English.
There is a growing trend within European Union nations to make English the official language. How ironic. At a time when U.S. companies are making you "Press 1 for English" and ATMs require choosing from a menu containing Spanish, Mandarin and Arabic, the land of many languages is thinking of making English its multi-country language.
It would benefit the U.S. to embrace English and encourage its citizens to master one language--instead of kowtowing to individuals who refuse to assimilate into this Country.