| Clue | Source | Date |
|---|---|---|
| Fallbacks | Wall Street Journal | 30 Apr 2024 |
| Backups | New York Times | 01 Jan 2022 |
| Alternatives in case things don't work out | New York Times | 06 Aug 2018 |
| Backup strategies | LA Times Daily | 05 Feb 2018 |
| Backup strategies | The Washington Post | 05 Feb 2018 |
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| Alternatives in case things don't work out | ||
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