Illegal immigrants and non-residents imprisoned on felony charges costs the United States Tax Payer an estimated $226 BILLION dollars each year! These funds could be reallocated to fund a number of domestic infrastructure projects.
http://www.fairus.org/publications/the-fiscal-burden-of-illegal-immigrat...
http://www.fairus.org/issue/examples-of-serious-crimes-of-illegal-aliens
http://www.gao.gov/assets/320/316959.pdf
http://www.breitbart.com/big-government/2015/07/07/illegal-immigrants-ac...