For many years, it was considered socially acceptable by some to use the term “illegal immigrant” (or worse, “illegal alien”) to label people living in the United States without proper authorization.

But those days are over. In 2015, everyone from President Obama to actress Natalie Portman has gotten used to saying “undocumented immigrant” or “unauthorized immigrant” instead of the outdated and offensive phrase “illegal immigrant.” Publications like the Los Angeles Times and The Associated Press have asked their writers to not use the term “illegal immigrant” unless it is part of a quote. The Supreme Court has also opted for terms like “unauthorized aliens” and “unauthorized workers” because legal experts say that “illegal immigrant” is just not accurate.

So, in a modest effort to help America shed some of its historical baggage, we built a Twitter bot that replies to some of the people who tweet the words “illegal immigrant,” letting them know that in…