The US citizenship has an amazingly high pass rate — but it also has a number of critics. They argue the questions, frankly, are bad. And the test doesn't encourage immigrants to become better citizens, but rather to memorize facts they can write on the test.

Justice

Why do we have birthright citizenship, and should it change?

Updated

Donald Trump has laid out an immigration policy that includes a plan to end the principle that babies born in the US automatically become citizens. But what are the origins of that principle and the practicality and legality of the Republican presidential candidate's plan?

Culture

Citizenship? No thanks, I'll pass for now

Along with gaining the right to vote and the responsibility of serving on a jury, some studies show new citizens make clear economic gains as well. But not everyone buys it. Naturalization rates in the US are extremely low. Of the more than 8 million people with a US green card, less than 40 percent will go on to naturalize. That's nearly a third of the naturalization rate in our neighbor to the north, Canada.