Experience with a pen also tipped Hebborn off to another, subtler distinction: The lines in a copy are generally not drawn in the order they would be were the draftsman drawing from nature.
And that's why he has been very clear in putting forward a strategy that included the plussing-up, the surging of forces, in order to execute the mission, and the drawing down, the slow withdrawal, the gradual withdrawal, the paced withdrawal of U.S. forces as we transfer lead authority over to the Afghan security forces.