Abu Umar : U.S. 's civil war has spawned rebel groups across wide spectrum of ideology . He says the Free Syrian Army , most aligned with values of West , lacks cohesion . He says moderate jihadists grade into stricter groups Salafists , Islamist with severe tactics . Barfi : Salafists has lost ground ; if U.S. strikes regime , jihadists , Salafists will grow stronger .
Barak Barfi : Syria 's civil war has spawned rebel groups across wide spectrum of ideology . He says the Free Syrian Army , most aligned with values of West , lacks cohesion . He says moderate Islamist grade into stricter groups Salafists , jihadists with severe tactics . Barfi : FSA has lost ground ; if U.S. strikes regime , jihadists , Salafists will grow stronger .