It has been rare so far, but may become more common with the current administration http://www.npr.org/sections/thetwo-way/2016/12/22/504031635/you-say-you-re-an-american-but-what-if-you-had-to-prove-it-or-be-deported
It has been rare so far, but may become more common with the current administration http://www.npr.org/sections/thetwo-way/2016/12/22/504031635/you-say-you-re-an-american-but-what-if-you-had-to-prove-it-or-be-deported