The interesting thing about surveillance in the 18^th century is that, when you’re dealing with trans-Atlantic distances, the information moves slowly, and errors can be costly.

We told you not long ago about someone who’d heard about the Minutemen, but had their numbers wrong by a factor of thousands. Fortunately in that case, it was just casual gossip rather than actual spycraft. But today in history, a bit of information about Colonial artillery that was reported to the Provincial Congress in Massachusetts leaked to the British, along with information about the Minutemen’s numbers and level of preparedness. But as we’ll discover in the next couple of days, the British were already taking precautions.