I'll provide an example. http://www.mathematica-mpr.com/our-publications-and-findings/projects/child-support-noncustodial-parent-employment-demonstration
On the page linked above, there is a medium size image depicting a father and son. The alt text there is "father with young son", the compliance team is arguing that the alt text should be removed as it adds no value. My thought was around changing the alt text to be more specific to the article, but even how it currently is it tells the screen reader that the image is of a father with his young son which is accurate. The compliance team feels these are decorative images - and I can't disagree more. I was hoping to find some evidence to support my case.