To what extend should bilingual courses be offered in the public schools?

Bilingual courses should be offered in school, because this language is growing fast in the United States.  Yes, this is a country based on English, but the Hispanic population is growing fast everyday.  The language has caused many ratio issues with the English speaking people that do not know the Spanish language.  Many young people in school know the language, but they speak English.  Many older people that talk Spanish do not know how to speak English, and they do not care to learn the language.
There should be an extended course in school to learn the Spanish language.  There should be teachers that teach the language.  Many cultures are coming to America, but that doesn't mean that they cannot talk their language.  Based on the country, English has been the main language, but things change. In my point of view Spanish needs to be taught in the public schools.  It is not an easy language to learn, if you do not know how to speak Spanish, so starting early in life would help to learn, so yes it should be extended in the public schools.