Byron York

There's no question that the rebels Americans are currently fighting for in Libya include in their ranks jihadis who in recent years traveled to Iraq and Afghanistan to kill Americans. The only question is whether that worries you or not.

Take Abdel-Hakim al-Hasidi, a leader of U.S.-supported rebels in the fighting for Ajdabiya. His hometown, Darnah, has produced many jihadis, and after the Sept. 11 attacks, al-Hasidi traveled to Afghanistan to fight the "foreign invasion" -- that is, the U.S. military. According to a report in Britain's Daily Telegraph, al-Hasidi says he was later captured in Pakistan, handed over to the United States, and then held in prison in Libya before being released in 2008.

In addition to fighting the United States in Afghanistan, al-Hasidi also says he recruited about two-dozen men to fight the United States in Iraq.

Now al-Hasidi and his allies are engaged in a back-and-forth battle with forces loyal to the government of Moammar Gadhafi. The rebels' fight would not be possible without the military power of the United States.

To some observers, that's no big deal. "No one seems all that frightened by him," the New York Times wrote of al-Hasidi after a visit to Darnah in early March. Al-Hasidi, the paper reported, "praises Osama bin Laden's 'good points' but denounces the 9/11 attacks on the United States." And besides, the Times reported, al-Hasidi finds it amusing that the government of Moammar Gadhafi considers him an al Qaeda terrorist. "He promised to lay down his arms once victory is won and return, he said, to teaching," the Times reported.

Maybe you believe that. Maybe you don't. The problem is, al-Hasidi is by no means alone. We know that from intelligence gained in the Iraq War.

During that war, American strategists became increasingly concerned by the number of foreign fighters who came to Iraq to take up arms against the United States. In an October 2007 raid near Sinjar, Iraq, American forces captured a computer that had biographical information on about 700 foreign terrorists who had come to Iraq between August 2006 and August 2007. An analysis of the so-called "Sinjar documents" found that Libya sent more fighters to the Iraqi front than any other country except Saudi Arabia; Libyans accounted for nearly 20 percent of the foreign fighters in the Sinjar documents. Some of those Libyans were from an al Qaeda-affiliated organization called the Libyan Islamic Fighting Group, whose membership reportedly included one Abdel-Hakim al-Hasidi. In 2004, then-CIA Director George Tenet named the Libyan Islamic Fighting Group part of the "next wave" of terrorism that could threaten U.S. security whether or not al Qaeda was destroyed.

Byron York

Byron York, chief political correspondent for The Washington Examiner