| Clue | Source | Date |
|---|---|---|
| Sign before merging | New York Times | 30 Apr 2021 |
| Sign of an impending merger? | LA Times Daily | 28 Jun 2017 |
| Sign of an impending merger? | The Washington Post | 28 Jun 2017 |
| Sign of an impending merger? | ||
| Road sign at the center of a 2013 Chris Christie scandal | The Chronicle of Higher Education | 13 Feb 2015 |
| Road sign at the center of a 2013 Chris Christie scandal | ||
| Warning sign | ||
| Road sign #1 |