The humanities need to be defended today against the encroachments of physical science, as they once needed to be against the encroachment of theology.
However, I have a low opinion of people with narrow political horizons. Someone who talks about the environment and knows nothing about economics can make as many mistakes as someone who does the opposite.
The FBI, to its credit in a self-serving sort of way, rejects the routine use of the polygraph on its own people.