Luckily, all that talk about how the government can never do anything right doesn't apply to nukes

Margin for error 1/8 of an inch in nuclear world - U.S. - Stripes

Investigators determined that a single replacement circuit card in a Minuteman 3 computer system's slot connector was one-eighth of an inch from being fully seated. That effectively jammed communications between the missiles and the five launch control centers to which they are connected by buried cables.