Saudi Arabia has been bankrolling Islamist terrorism since the oil-price boom of the 1970s dramatically boosted the country’s wealth. According to a 2013 European Parliament report, some of the $10 billion invested by Saudi Arabia for “its Wahhabi agenda” in South and Southeast Asia was “diverted” to terrorist groups, including Lashkar-e-Taiba, which carried out the 2008 Mumbai terror attacks.