If we all (inadvertently) commit a federal crime, or 2 or 3 a day, then all of us are vulnerable. Any government body that decides they don't like our position on any issue can use the force of government to charge us with a crime. And it is likely that, because of the broad and vague nature of the ever expanding federal government, we are guilty of SOMETHING.
Harvey Silvergate has written a book called "Three Felonies a Day" that covers this topic in excellent detail.
No social class or profession is safe from this troubling form of social control by the executive branch, and nothing less than the integrity of our constitutional democracy hangs in the balance.
A number of cases are now in front of the Supreme Court. Let's hope they knock down the oozing of federal intrusion into every part of our lives.
Here is a Cato Institute interview with Harvey Silvergate on his book.