Days after reinforcing its borders with Iraq, Saudi Arabia has boosted security around critical facilities countrywide. This is in part a response to the deteriorating situation in Iraq and in part based on intelligence that the kingdom itself is at risk of terrorist attack. Riyadh is hardening strategic domestic infrastructure and energy sites that might be within the reach of terrorists linked to the Islamic State transnational jihadist organization. This security posturing reflects the inherent risks posed by Saudi Arabia's erstwhile strategy of using regional militant groups to target Iranian and Shiite interests. A July 18 report from a Saudi-owned news agency revealed a plot to hit petroleum facilities, desalination plants, government buildings and other potential targets in Saudi Arabia.