In this paper we deal with the compressible Navier-Stokes equations with a
friction term in one dimension on an interval. We study the exact
controllability properties of this equation with general initial condition when
the boundary control is acting at both endpoints of the interval. Inspired by
the work of Guerrero and Imanuvilov in \cite{GI} on the viscous Burger
equation, we prove by choosing irrotational data and using the notion of
effective velocity developed in \cite{cpde,cras} that the exact global
controllability result does not hold for any time T
