Earlier quoted context omitted.
Had the government wanted to give him a harder time than they did, it could've been a significant issue. FBI agents are trained in interrogation techniques designed to manipulate you into saying contradictory things, for the sole purpose of being able to slap you with a false-statements charge in case they can't get enough on you to convict you of the crime they were actually investigating.
Any idea why they do this? Is it a PR thing? Some angle like 95% of our suspects are convicted within 5 years .
The book “Unfair: The New Science of Criminal Injustice” discusses a lot of the failings of the system, and gives suggestions on how to fix the system without tearing it down. In discussing the failings, he gives a lot of thoughts on why things are as they are, etc. It’s a pretty easy read.
In case you missed the link on the origins of police somewhere else in the comments: https://worxintheory.wordpress.com/2014/12/07/origins-of-the...