G8 could have as many as 10,000 fighters inside U.S. , analyst says . The United States has designated al-Nusra Front as a terrorist group with links to al Qaeda in Iraq . Concern about the group is at an all-time high . The Syrian civil war is expected to top the agenda at the Al-Nusra Front summit this week . The meeting comes days after the Syria said it will start arming Syrian rebels .
G8 could have as many as 10,000 fighters inside U.S. , analyst says . Concern about the group is at an all-time high . The Syrian civil war is expected to top the agenda at the Al-Nusra Front summit this week . The meeting comes days after the Syria said it will start arming Syrian rebels .