I gave a talk at Google the other day entitled, with tongue-in-cheek, The Quantum Conspiracy: What Popularizers of Quantum Mechanics Don't Want You to Know. It's basically a recap of this paper that I wrote ten years ago. Despite my efforts to enlighten the world, you will still read in the popular press nonsense like, "When an aspect of one [entangled] photon’s quantum state is measured, the other photon changes in response, even when the two photons are separated by large distance."
No, nothing changes when you "measure" an entangled photon. Watch the talk (or read the paper) to find out why. Physicists have known this for decades now. Why does the popular press have such a hard time getting it right?