According to the U.S. Department of Education, as of April 2012 there are national teacher shortages in the following fields:
Bilingual Education and English Language Acquisition
Foreign Language
Mathematics
Reading Specialist
Science
Special Education
Additionally, the state of New York has been experiencing teacher shortages for more than the past 20 years in foreign languages (http://www2.ed.gov/about/offices/list/ope/pol/tsa.pdf on pages 88-93. Accessed on 9/14/12)
A career as a foreign language teacher is one that is in high demand across the country.