Aliens might be friendly — but don’t bet on it: expert’s dire warning

Sure, they’re out there, but should we be looking?

Michio Kaku, a professor of theoretical physics at City College of New York and all-around pop-science icon, has issued a warning about extraterrestrials — and efforts to seek them out. “I think that’s a terrible idea,” the 74-year-old astrophysicist said.