In this article, we briefly review the recent progress related to extracting
the quark-gluon plasma (QGP) specific shear viscosity from the flow data
measured at Relativistic Heavy-Ion Collider (RHIC) and the Large Hadron
Collider (LHC).Comment: 8 pages, 2 figures, proceedings of Quark Matter 2012, August 13-18,
Washington D.C., US
