Hyperbolic behaviour of geodesic flows on manifolds with no focal points

We consider a Riemannian manifold M with no focal points such that the universal cover contains a geodesic which does not bound a flat totally geodesically embedded half plane. It is shown that (i) If the non-wandering set of the geodesic flow is the whole of SM , then the closed orbits are dense in SM . (ii) If M is compact then the geodesic flow is ergodic and Bernoulli with respect to the Liouville measure on SM