Figure 8
From: Forecasting the locational dynamics of transnational terrorism: a network analytic approach

Relative threat of an attack on the U.S. posed by Saudi nationals. The y-axis gives the percentile rank of Saudi Arabia among all other countries in the world at the time, with respect to the predicted probability of an attack on the U.S. The red bar is placed at 2001, which is the one and only recorded instance of a Saudi attacking on U.S. soil.