Question about child pornography

[This user has not been convicted of 34 felonies]

I believe I read somewhere that federal law states that it is prohibited to possess a picture/video of a minor engaging in any sexual act.

Is this true?

Because, it got me thinking, if the law is that one cannot possess nude pictures at all of minors, then why aren't parents who post pictures of their infant children nude arrested?

I'm honestly very curious about this.

[This user has not been convicted of 34 felonies]

What's the confusion? You state yourself that the law prohibits possession of material showing minors engaging in sexual acts. Being nude is not inherently a sexual act.

I'm not sure if that's the law though.

[This user has not been convicted of 34 felonies]

So technically, enforcement of the law varies?

[This user has not been convicted of 34 felonies]

So basically it depends on the context of the situation?

[This user has not been convicted of 34 felonies]

I see.