2011 modification - Posse Comitatus Act

In 2011, President Barack Obama signed National Defense Authorization Act for Fiscal Year 2012 into law. Section 1021(b)(2) extended the definition of a "covered person", i.e., someone possibly subject to detention under this law,[dubious – discuss] to include:

A person who was a part of or substantially supported al-Qaeda, the Taliban, or associated forces that are engaged in hostilities against the United States or its coalition partners, including any person who has committed a belligerent act or has directly supported such hostilities in aid of such enemy forces.[10]

Section 1021(e) purports to limit the scope of said authority with the text, "Nothing in this section shall be construed to affect existing law or authorities relating to the detention of United States citizens, lawful resident aliens of the United States, or any other persons who are captured or arrested in the United States."[11]