They undoubtedly have the fingerprints of any American they care to (hell, they got mine during 4th grade when a police officer came to our school to "teach us

They undoubtedly have the fingerprints of any American they care to (hell, they got mine during 4th grade when a police officer came to our school to "teach us about fingerprinting"). However iPhones are of course used throughout the world... Even ignoring the specific issue of fingerprints, which I am not convinced is a major concern, the widespread use gives numerous other reasons for pause.