Assertion: nuclear weapon's use | /r/HasProperty | discussed
Facets:
value: with mentioning weapons
type: OTHER
value: as early as the 1950s
type: TEMPORAL
Source sentences:
text: The use of neutron-based attacks was discussed as early as the 1950s, with the US Atomic Energy Commission mentioning weapons with a "clean, enhanced neutron output" for use as "antimissile defensive warheads.