For three consecutive days, oil futures have drifted lower even as Saudi Arabia's pipeline infrastructure absorbs real damage and Houthi forces press toward the kingdom's oil-rich east — a reminder that markets do not always move in the direction of danger, but in the direction of what traders believe danger will ultimately become. The decline is less a verdict on safety than a wager on containment, a collective bet that crude will keep flowing despite the fires burning near its source. History suggests such wagers are sometimes right, and sometimes the last calm before a much sharper reckonin