A quantum correlation can be established between the state of two ions, without the ions themselves coming in contact with one another or exchanging photons directly.
There is a possibility of thinking about quantum theory as the theory that in some sense maximally violates Bell inequalities among no-signaling theories, by replacing no-signaling by the more general principle of information causality.
The observation of a new particle by the D0 collaboration at FermiLab appears to have been confirmed by the CDF collaboration, albeit with a different measured mass.
