Did the IRS target Americans in Israel?

Americans in Israel constituted one of the largest groups to oppose President Obama's election both in 2008 and in 2012.

On Purim day in 2011, a US citizen in my neighborhood, who has been living here since he was a child, came up to me and asked whether I could help him with something to do with the IRS. It seems that the IRS had audited him because he had claimed the Additional Child Tax