“The NYT recently ran a series of articles debating the importance of foreign language learning for Americans. In your view, is it essential for Americans to learn a second language or is it just an extra skill or hobby?”
For people already in a career, knowledge of a second language is not essential.
English is and will remain the lingua franca of business for at least the next twenty years.
Personally, I am bilingual and believe that language education is very helpful in developing your own cultural agility.
Having a global mindset is a key factor for advancement in the business world and mastering languages beyond english are one way to develop this.