The list is more of an administrative update than an urgent signal to locate the two men.
Omar Hammami, also known as Abu Mansoor al-Amriki, has been a leader and a key propagandist with the Somalian al Qaeda ally al-Shahaab since 2006. U.S. authorities believe that he is a dangerous threat due to his ability to speak English and his experience with propaganda.
The other name added to the list is Raddulon Sahiron, a suspected leader of the al Qaeda-affiliated Abu Sayyaf network in the Philippines.
Hammami, the son of a well-to-do Baptist mother and Syrian father, has faced indictment since 2007 on charges he provided material support to terrorists. A superseding indictment leveled against him in 2009 claims he left the U.S. to fight with al-Shahaab in Somalia.
In the past, Hammami has recorded several rap songs where he advocates jihad against the West and announces his intention to be killed by American artillery or a drone so he can become a martyr.
Earlier this year however, Hammami posted a video online saying that he feared for his life within al-Shahaab camps as fighters had turned against him due to ideological differences.
Also a writer, Hammami jokes in an online blog post that drones are racist. They prefer to target white people, he quipped.
Hammami has good reason to fear a U.S. strike against him. Last year, the military killed high-profile al Qaeda recruiter Anwar al-Awlaki and al Qaeda propagandist, Samir Khan, both of whom were American citizens.