 美国设计的某些核武器的另一个安全特征是使用钝感高能炸药，而不是常规的高能炸药。钝感高能炸药对震动或高温的敏感程度低得多，并且对意外爆炸极具抵抗力。
 Another safety feature of certain U.S. nuclear weapons designs is the use of insensitive high explosive (IHE) as opposed to conventional high explosive. IHE is much less sensitive to shock or heat and highly resistant to accidental detonation.