In the passage, the writer uses words with strong negative connotations ("absurd," "ignorant," "foolish," "narrow-minded") to criticize the current state of language education in the United States.
Additionally, the word "vitally" has a strong positive connotation, emphasizing the importance of learning a foreign language.
Thus, the writer employs words with both strong negative and positive connotations.
The answer is: words with strong negative and positive connotations.