LAST Friday, in France, an Islamist named Yahya Salhi killed his employer, Herve Cornara. He attached the victim's severed head to the fence around a chemical plant, together with a cloth saying "There is no God but God and Muhammad is his prophet" - and then rammed his vehicle into a warehouse full of chemicals hoping (but failing) to cause an explosion.
In Kuwait two hours later, Fahd Suleiman Abdulmohsen al-Qaba'a, a Saudi citizen, entered a Shia mosque and detonated a bomb that killed at least 25 people. He was presumably a Sunni fanatic sent by "Islamic State" to kill Shias, who they believe are heretics who should be killed.
In Tunisia one hour later, 38 European tourists, most of them British, were massacred by a 23-year-old man with a Kalashnikov on a beach in Sousse. The perpetrator, Seifeddine Rezgui, was studying engineering in Kairouan, an hour's drive west of Sousse.
Islamic State, which has carved out a territory in Iraq and Syria that has more people and a bigger army than half the members of the United Nations, immediately claimed responsibility for all three attacks. Yahya Salhi may have been a lone-wolf head case, but in the other two cases the claim was almost certainly true.
But there was another attack that you probably didn't hear about. Kobani, the Kurdish town in northern Syria that withstood a four-month siege by Islamic State troops last year, came under attack again last Thursday. About 100 young Islamists in Humvees and pickup trucks drove into town and shot 220 people dead in the streets and in their houses.