[The Cajun]

No "data" is transmitted. No "information" is transmitted.

Soooooooooooooo, what was transmitted that caused one photon to effect the other instantly?

[FredZarguna]

Nothing is transmitted. That is the problem with articles like this: they're too sloppy with the physics because these are not intuitively accessible concepts.

This is a quantum system. It is meaningless to talk about an electron on "one side of the room" and an "electron on the other side of the room," because there is no such thing. There is a system composed of two electrons, which are not distinguishable from each other. The experimenters cannot do any experiment that verifies that the qubits they have on "one side of the room" are not the same qubits that they think are "on the other side of the room." [Or indeed -- what is more correct -- are actually both sets, on both sides of the room at the same time.]

The multi-particle state has a particular spin, which when affected by experiment must affect the entire system.

The article, like most of its kind, is a careless mixing of classical, relativistic, and quantum concepts. It's a conceptual mess.