At 42.4 million, there are now more immigrants, legal and illegal, in America than ever before, fueled by a massive flood from Muslim nations, and the growing numbers are substantially impacting public services like public schools, according to a weighty new analysis of Census Bureau data. One impact of note: There are 10.9 million students from immigrant households in public schools, accounting for 23 percent of all public school students, according to the Center for Immigration Studies. And while the doors remain open on the U.S.-Mexico border, the biggest percentage increases in immigration are all from largely Muslim nations, a...