Practicing Metta is the opposite of picking and choosing. Picking and choosing is evaluating and establishing a hierarchy. One vs. another. Terrorists pick and choose. There should be no ladder. Only a horizon. With a ladder someone is above or below you. On the horizon there are people to your left, right and all around. A ladder is a straight line. The horizon may look like a ladder fallen on its side when it is really a circle. A circle holds more than a straight line. But the choice is ours.