We often assume that everyone will have fingerprints (as in the literal prints made from people’s fingers), bu from Reuters

A Singapore cancer patient was held for four hours by immigration officials in the United States when they could not detect his fingerprints — which had apparently disappeared because of a drug he was taking.

Although 4 hours is not exactly an impressive delay from an American airport and capecitabine is not a common drug, it raises interesting issues. Namely that when a simple process works in 99% of cases, we really aren’t prepared for that 1% of outliers. In this case, I’m curious what the Americans With Disabilities Act says about treatment of finger/hand/arm amputees in fingerprinting situations.