Notorious USG surveillance firm Cloudflare is hyping a network of "randomness beacons" and encouraging folks to use the output of these beacons in places where numbers generated under the watch of others do not belong (archived). The pernicious shitgnomes caution against using the public output of their beacons for private keys in order to imply their "private" entropy offerings are suitable for private keys. They are not. The proposition that a known NSA and CIA surveillance partner offers any private thing is incredible in its insanity.
Hygienic random numbers suitable for battlefield use come from auditable processes and instruments in the hands of the user whose life depends on them.