I don't know about APS, but during a recent visit to CERN, I was pleased to see just how
open everything is at CERN. There are no secrets, all the data is shared, free software is encouraged at all levels, as is free hardware (e.g. their KiCad involvement). This is due to CERN's mandate to disseminate knowledge to all constituent states, which I understand roughly means the entire world. You want to go and download CERN's data and see if you can find particles on your own, go right ahead:
http://opendata.cern.ch/
I'm glad to see a little more sharing and openness.