  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.
