Americans are becoming more accepting of increased immigration to the U.S. than they were a few years ago. Although the majority of Americans were not in favor of increased immigration, especially after the 9/11 terrorist attacks, 23% of Americans currently support it, the highest percent of pro-immigration Americans ever recorded by Gallup.
“Americans More Pro-Immigration Than in Past”: Gallup.com, July 11, 2013 http://www.gallup.com/poll/163457/americans-pro-immigration-past.aspx