  We investigate the Lagrangian statistics of three-dimensional rotating
turbulent flows through direct numerical simulations. We find that the
emergence of coherent vortical structures because of the Coriolis force leads
to a suppression of the "flight-crash" events reported by Xu, et al. [Proc.
Natl. Acad. Sci. (U.S.A) 111, 7558 (2014)]. We perform systematic studies to
trace the origins of this suppression in the emergent geometry of the flow and
show why such a Lagrangian measure of irreversibility may fail in the presence
of rotation.
