https://www.cnn.com/2022/06/24/politics/russian-spy-johns-hopkins-classmates-accent-suspicious/index.html
Gregarious, smart, and often seen toting a helmet for his beloved
motorcycle, "Muller" was known, and even liked, by his fellow students
and the faculty at SAIS. But his muddled accent caught the ear of a few
classmates. On one occasion, a fellow student asked him outright: Are
you Russian?
The spy brushed off the question. He was from Brazil, he said in what
turned out to be part of the elaborate cover identity he spent years
building.
Bye, Anatol