Here's a proposal, offered only partly in jest: no resident of the United States, whether born here or abroad, should get to be a citizen until age 18, at which time each such resident has to take a test.

It turns out umpires and judges are not robots or traffic cameras, inertly monitoring deviations from a fixed zone of the permissible. They are humans.

Republicans say they want citizenship to truly mean something. Let's be equal-opportunity about it and test everyone, including those very Republicans and others whose forbears came here generations ago.

Eric Liu Quotes