Um, these individuals have joined a foreign army which has declared war and hostilities against the United States, has actually threatened and killed citizens of the United States. That, my dear FBI director, is called treason.

8 U.S. Code Section 1481 states:
(a) A person who is a national of the United States whether by birth or naturalization, shall lose his nationality by voluntarily performing any of the following acts with the intention of relinquishing United States nationality—
(1) obtaining naturalization in a foreign state upon his own application or upon an application filed by a duly authorized agent, after having attained the age of eighteen years; or
(2) taking an oath or making an affirmation or other formal declaration of allegiance to a foreign state or a political subdivision thereof, after having attained the age of eighteen years; or
(3) entering, or serving in, the armed forces of a foreign state if
(A) such armed forces are engaged in hostilities against the United States

If the director of the FBI refuses to see this, we are in serious difficulty.

But don’t worry, they’re going to ‘monitor’ them. Just like the Boston bombers…