What if a nuclear reactor had been the target of last month’s accurate missile attack on Saudi Arabian oil facilities? We might now be mopping up a Middle East Chernobyl. The lesson should be clear: Don’t build more large reactors in the region. They’re radioactive sitting ducks.

Saudi Arabia has plans to build an array of large nuclear power plants. Next door, the United Arab Emirates is spending $20 billion to complete four commercial reactors at Barakah. Egypt and Turkey both have begun constructing two massive Russian-designed nuclear power plants. Meanwhile, Iran has two operating reactors and has begun constructing two more. After Iran’s Sept. 14 missile attack against Saudi Arabia, though, all of these plants risk being wiped out.