  In this paper, we will use Kahn-Markovic's almost totally geodesic surfaces
to construct certain $\pi_1$-injective 2-complexes in closed hyperbolic
3-manifolds. Such 2-complexes are locally almost totally geodesic except along
a 1-dimensional subcomplex. Using Agol and Wise's result that fundamental
groups of hyperbolic 3-manifolds are LERF and quasi-convex subgroups are
virtual retract, we will show that closed hyperbolic 3-manifolds virtually
contain any prescribed homological torsion: For any finite abelian group $A$,
and any closed hyperbolic 3-manifold $M$, there exists a finite cover $N$ of
$M$, such that $A$ is a direct summand of $Tor(H_1(N;\mathbb{Z}))$.
