Answer: abombs

AnswerCrossword Clue
ABOMBS

WWII WMDs

ABOMBS

Mushroom makers

ABOMBS

Fat Man and Little Boy, e.g.

ABOMBS
WWII enders
ABOMBS
Subj. of Cold War tests
ABOMBSFat Man and Little Boy
ABOMBSFallout producers
ABOMBSMushroom makers, briefly
ABOMBSThey fell on Japan
ABOMBSLos Alamos test subjects, informally
ABOMBSLos Alamos projects
ABOMBSPowerful weapons
ABOMBSFission gear?
ABOMBSMushroom cloud producers
ABOMBS20th century phenomena.
ABOMBSTerrible facts of life.
ABOMBSWeapons
ABOMBSNevada Flats test items
ABOMBS"Fat Man" and "Little Boy" of 1945
ABOMBSThey cause blowups
ABOMBSDestroyers, in brief
ABOMBSNukes
ABOMBSMushroom producers
ABOMBSCauses of Bikini blasts
ABOMBSW.W. II blast makers
ABOMBSW.W. II enders, for short
ABOMBSFat Man and Little Boy, for two
ABOMBSPowerful weapons, for short
ABOMBSTest subjects of the '40s