The Azimuthal Asymmetry at large $p_t$ seem to be too large for a ``Jet Quenching''

We discuss simple generic model of ``jet quenching'' in which matter absorption is defined by one parameter. We show that as absorption grows, the azimuthal asymmetry $v_2$ grows as well, reaching the finite limit with a simple geometric interpretation. It turns out, that this limit is still below the experimental values for $6> p_t > 2 GeV$, according to preliminary data from STAR experiment at RHIC. We thus conclude that ``jet quenching'' models alone cannot account for the observed phenomenon, and speculate about alternative scenarios.