As far as the cable/TV outlets, perhaps because so much is going on? However, looking at some of the online news sites:
Newsmax: 120 Ex-Military Leaders Pen Letter Warning of Deep National Perils, Biden's Lack of Fitness
The Blaze: 124 retired generals and admirals say US in 'deep peril' under Biden, warn of hid 'mental' condition (via the Bongino Report)
The Epoch Times: 120 Retired US Military Officers Warn of Conflict Between Marxism, 'Constitutional Freedom'
It's interesting to note that Fox News, OANN, and The Daily Caller did not cover the letter; and the Epoch Times focused on the Marxism angle (although, with their anti-Communism slant, this is not a surprise.)
