The grotesque rehabilitation of Bashar al-Assad’s regime – Syria’s criminal president has been cordially invited to this week’s Arab League summit in Saudi Arabia – makes sense to cynical Arab governments. They hope to reduce Damascus’s dependence on Iran, encourage refugees to return, halt state-sponsored drug rackets and cash in on reconstruction. But from a human perspective, their decision is utterly shameful. More than 300,000 civilians have died since Assad turned his guns on Syria’s 2011 Arab spring pro-democracy uprising. About 14 million people, half Syria’s population, have fled their…