Black and North African railway workers were banned from working at Paris's Gare du Nord when the President of Israel visited France over fears they might be Muslim...Unless and until Harris actually explains what he means by "anyone who looks like he or she could conceivably be Muslim" we have to assume that he means what is commonly meant: dark-skinned people, or people who wear non-western attire. I'm sorry, but that is the very definition of racist.
Once again: I am completely on board with singling out Muslims, if by "Muslim" one means people who adhere to a certain set of virulent beliefs (and not "people who self-identify as Muslim"). The problem is that there is no way to tell who these people are by looking at them. This is a complete no-brainer. And Sam Harris is a neuroscientist. He of all people should know this.