I keep seeing the taunt, "Obama hasn't taken away your guns" being offered by people

[zipplewrath]

7. "...without explicit participation"

That's the phrase of course that scares everyone. In the day of "Big Data" there is a very good chance that manufacturers and distributors of products would be able to detect criminal intent purchases. The first one to lose that case would be in deep trouble.

This is not new. Bars have long worried about being held liable for serving people who then drive, or pregnant women. Pharmacies quickly instituted systems to avoid/detect purchases of ingredients for crystal meth and other "home grown" products. Heck, we had a newspaper/weekly here that got in trouble for printing a bit too explicit "escort" ads. In almost any business there comes a time when it becomes difficult to avoid knowing what is going on. That's when the trouble starts. The social media sites have struggled with this problem from almost the very beginning. It becomes a fine line between "ignoring" and "not being aware".