This statement is a rewording of a passage from page 261 of The Audacity of Hope, in which Barack Obama spoke of the importance of not allowing inflamed public opinion to result in innocent members of immigrant groups being stripped of their rights, denied their due as American citizens, or placed into confinement, as was done with Japanese-Americans during World War II. The original contains no specific mention of "Muslims":
Now I direct your attention to the subject—"Arab and Pakistani-Americans" (nominally Muslims)—and delete the inconsequential strike-throughs—you can see that the "misquote" is brief, but accurate...
"In the wake of 9/11, my meetings with Arab and Pakistani Americans, for example, have a more urgent quality, for the stories of detentions and FBI questioning and hard stares from neighbors have shaken their sense of security and belonging. They have been reminded that the history of immigration in this country has a dark underbelly; they need specific reassurances that their citizenship really means something, that America has learned the right lessons from the Japanese internments during World War II, and that I will stand with them should the political winds shift in an ugly direction."
Read more at http://www.snopes.com/politics/obama/coilofrage.asp#qHXPJtLQRo8JtdOU.99
Go sleep it off.