And there could well be more of it without them.
Sudan's President Omar Hassan al-Bashir vowed today to retaliate against Israel for a recent alleged airstrike. The Monitor explains the background of the dispute.
And why not? It's not as though his public statements cost him anything.
Much of the Soviets' development work got wiped out by a civil war in the 1990s. But the scope of the effort then was limited compared with the work today.