Atheism and terrorism don't typically go together, but in Saudi Arabia they're considered natural allies. According to a report from Slate via Human Rights Watch, the kingdom has enacted new legislation that bans "calling for atheist thought in any form, or calling into question the fundamentals of the Islamic religion on which this country is based." Informs HRW:
The sweeping provisions in the measures, all issued since January 2014, threaten to close down altogether Saudi Arabia's already extremely restricted space for free expression. The new regulations come amid a campaign to silence independent activists and peaceful dissidents through intimidation, investigations, arrests, prosecutions, and imprisonment.
You might guess that atheists are rare in Saudi Arabia, which is after all a religious state. But in fact between five and 9 percent Saudis are atheists, according to the map below from the Washington Post. That means Saudi Arabia has just reclassified at least 5% of its population as terrorists.
Below: percentage of atheists worldwide.