Homeland Security Secretary Alejandro Mayorkas will face Congress on Tuesday with a host of pressing questions about terrorism and border security -- but one senator also plans to challenge him on his use of a private email to conduct government business.

On a cold February evening in 1933, the students of the Oxford Union debated and passed the motion “That this House will in no circumstances fight for its King and Country.” The debate, which took place a week or so after Hitler was named chancellor of Germany, became an international sensation.