  De Raedt et al. (Eur. Phys. J. B 53: 139-142, 2006) have claimed to provide a
local realist model for correlations of the singlet state in the familiar
Einstein-Podolsky-Rosen-Bohm (EPRB) experiment when time-coincidence is used to
decide which detection events should count in the analysis, and furthermore
that this suggests that it is possible to construct local realistic models that
can reproduce the quantum mechanical expectation values. In this letter we show
that these conclusions cannot be upheld since their model exploits the
so-called coincidence-time loophole. When this is properly taken into account
no startling conclusions can be drawn about local realist modelling of quantum
mechanics.
