They also devised technologies—permissive action links, go codes, and redundant command-control links—that minimized the chance of accidental or unauthorized launches.
That obsession, in the eyes of gun control advocates, borders on insanity and some of the wrinkles of America's permissive gun laws are so bizarre they beggar belief.
边缘地区的荒唐行为和美国异乎寻常的枪支泛滥成灾长期困扰着枪支管制的倡导者们。
3
The climate was permissive, supportive, and approving of mind control experimentation.