'They're never going to give this up': George Knapp on UFO cover-ups | CUOMO
| # | Entity ▲ | Mentions | View |
|---|---|---|---|
| 1 | 1947 | 1 | Details |
| 2 | 1953 | 1 | Details |
| 3 | 2017 | 1 | Details |
| 4 | almost 80 years | 1 | Details |
| 5 | many years | 1 | Details |
| 6 | more than 50 years | 1 | Details |
| 7 | recent years | 1 | Details |
| 8 | the last couple of days | 1 | Details |
| 9 | the past couple of days | 1 | Details |
| 10 | the years | 1 | Details |
| 11 | These days | 1 | Details |
| 12 | these years | 1 | Details |
| 13 | two days | 1 | Details |