| 1 | To challenge America head on made no sense. | |
| 2 | We could, at long last, have a trump card to play against Darwin. | |
| 3 | For some time now no navy or air force has posed a threat to the United States. | |
| 4 | Technology allows people to leverage the weight of these institutions against themselves, producing a jujitsu-like effect. | |
| 5 | "People wondered why I would challenge myself with such a question, " said Zhang. |