BEIRUT — At Masnaa, on the Lebanese-Syrian border, the line of buses and cars stretches for several kilometers. Since Monday, more than 31,000 people have crossed the border, according to the Lebanese authorities: some 16,130 Lebanese and 15,600 Syrian citizens, many of whom themselves were refugees from the civil war in Syria. These are the families now fleeing the intensive Israeli bombardment that is continuing in several locations across Lebanon. Seeking refuge, they are heading en masse for neighboring Syria, that other war-torn country. For the latest news & views from every corner of th…