| 1 | Worse yet, bank runs can be contagious. | |
| 2 | They thought bank runs were a thing of the past. | |
| 3 | But they could face bank runs long before then. | |
| 4 | The system works because we do not all run down to the bank and demand all of our money at the same time. | |
| 5 | What turned an ordinary recession into a civilization-threatening slump was the wave of bank runs that swept across America in 1930 and 1931. |