| Clue | Source | Date |
|---|---|---|
| Facility where the higher-ups do business? | The Washington Post | 07 Feb 2021 |
| Facility where the higher-ups do business? | LA Times Daily | 07 Feb 2021 |
| Info provider at the bottom of a PC window | Premier Sunday | 27 Oct 2019 |
| Area at the bottom of a certain window | The Washington Post Sunday | 11 Mar 2018 |
| Measure of progress |