DHS rolled out the revamped tool while it was still adding data. That led to widespread misidentification, particularly for citizens born outside the U.S.

Learn about unsponsored ADRs: definition, key differences from sponsored ADRs, limitations, and real-life examples of how they function in the U.S. financial markets.

Stadiums are outfitted with cameras that track each pitch and judge whether it crossed home plate within the strike zone. Human umpires call every pitch, but each team has the ability to challenge two ...