A Random

SCIFI.radio story

Earth receives a visit from future selves with warnings of impending doom who understand us all too well even though they can all do credible singing impressions of Ethel Merman who tend to stutter under pressure when confronted by the army, navy, air force, space force and/or marines , but scientists create a new weapon which turns them into weird rocks.
The End.but they die from catching the common cold.
The End.