They will serve on two guided-missile and two ballistic-missile subs based in the states of Washington and Georgia.

VOA: special.2010.05.21

Skinner developed, in World War II, a pigeon guided missile.

在二战时，斯金纳提出，用鸽子来为导弹导航。

耶鲁公开课 - 心理学导论课程节选