How worried should Americans be about Ebola? Not much, says Dr. Ezekiel Emanuel, bioethicist, brother of Chicago Mayor Rahm Emanuel and author of a controversial essay in the Atlantic about his decision to avoid life-extending healthcare after he turns 75.

While the patient with Ebola remains in critical condition in Dallas, Texas, medical staff are tracing everyone who may have possibly been exposed to the infectious disease. There are around 100 people currently being monitored for symptoms and more may…