"This key may be unsafe" - Redux

[Charly Avital]

> GPG Keychain Access 0.8.4 shows a red warning 'This key maybe unsafe'
> for *any* key with a length equal or inferior to 1024 bits.
[...]

> 
> Are keys whose length is equal or inferior to 1024 bits *unsafe*?
> If so, how are they unsafe?
> Where is this key length unsafe situation documented?

I am not aware of any GnuPG command in Terminal that would display or
warn about this situation. Is there any, or should there be any?


[...]

TIA.
Charly