He is an Israeli Arab who comes from the city of Nazareth. Haick recounts how he read about dogs who apparently were capable of sniffing cancer – detecting cancer in people where no such cancer had been detected before by conventional means. Dogs, of course, have super-sensitive noses. Still the fact that the presence of cancerous tumors led to a distinctive, though faint, odor, was surprising. A segment of the CBS program 60 Minutes documented, and demonstrated, how dogs could sniff out bladder cancer, in 2009.