In the midst of the struggle against Bashar al-Assad's government stands Jabhat al-Nusra, recently designated by the U.S. State Department as a foreign terrorist organization.

A new report by the Quilliam Foundation in London says the organization is the most effective arm of the Syrian insurgency and now fields about 5,000 fighters against the Assad regime.

Practically speaking, the terrorist designation means little that is new for the immediate struggle in Syria. Shortly after al-Nusra claimed credit for one of its early suicide bombings in January 2012, the Obama administration made known al-Nusra's connection to al Qaeda in Iraq, a group with which I was intimately familiar in my capacity as an analyst and targeting officer at the Central Intelligence Agency.

The administration's position was reinforced when Director of National Intelligence James Clapper one month later testified in front of the Senate Armed Services Committee that "...we believe al-Qaeda in Iraq is extending its reach into Syria."

Al-Nusra is filling a power vacuum through charitable efforts to galvanize local support and generating influence among Syrians. In light of al-Nusra's influence in Syria, the real question is not so much about the scope and scale of al-Nusra currently, but rather how should the United States respond to its rise, particularly after al-Assad's eventual exit?

Historically, the U.S. government seemed to believe that as soon as people are given the chance, they will choose and then create a Jeffersonian democracy. Then we are surprised, if not outraged, that people turn to organizations such as Hamas, Hezbollah or the Muslim Brotherhood in electoral contests. These organizations often provide the basic necessities that people need to survive: food, water, medical care, education and security.

As ideologically distasteful as we might find them, they are often doing things corrupt, weak or failing governments do not: providing the basic necessities that people need to survive (let alone create the conditions that enable people to aspire to thrive).

Why does al-Nusra keep quiet about its ties to al Qaeda in Iraq? The documents pulled from the Abottabad raid that killed Osama bin Laden shed light on his awareness that the al Qaeda brand had been deteriorating.

Bin Laden urged regional groups, "If asked, it would be better to say there is a relationship with al Qaeda, which is simply a brotherly Islamic connection, and nothing more," according to CNN. Bin Laden and Ayman al-Zawahiri had criticized the Jordanian-born founder and leader of al Qaeda in Iraq, Abu Musab al-Zarqawi, for his killing of civilians and lack of political acumen to win public support.

Talk about al Qaeda seems distant. It was a bogeyman made real in 1993 when it unsuccessfully attacked the World Trade Center and terrifyingly tangible in 2001 when its operatives succeeded in destroying the twin towers and expanded their attacks to the Pentagon and the air over Pennsylvania. Its looming shadow has since faded from the public eye, particularly with the death of bin Laden. Its vision and ideology, however, continue to have a strong appeal.