Libby Nelson, writing for Vox:
The fastest-growing foreign language class in the past 20 years isn't foreign at all. Nor is it spoken. It's American Sign Language.
More college students are now studying American Sign Language than Chinese and Russian combined. In 2009, ASL was the fourth-most popular language for college students to study, falling behind only Spanish, French, and German.
True story: When I was in high school, my guidance counselor waived the foreign language graduation requirement because of my fluency in American Sign Language. It's my first language, and deeply ingrained into who I am as a person.