The problem is that they didn't allow for the extra centimetre of overlap. So it didn't fit correctly.
Tom isn't likely to let Mary do that.
- Tom isn't likely to allow Mary to do that.
Tom is going to let Mary do that.
- Tom is going to allow Mary to do that.
... allow for the building of cities ...
... to build "lawful intercept" back-doors into their equipment to allow for warrantless, ...