Lauren Wolfe : Obama says world set ` ` red line '' on chemical weapons that ca n't be used . The opinions expressed in this commentary are solely those of Lauren Wolfe . She asks : Why does world have no such red line on abhorrent weapon of mass destruction ? She says in Syria and Iraq , violence is ` ` normalized , '' does n't draw threat of intervention . Wolfe : U.S. should rethink ties to Rwanda , which backs Congo , known for atrocities .
Lauren Wolfe : Obama says world set ` ` red line '' on chemical weapons that ca n't be used . She asks : Why does world have no such red line on abhorrent weapon of mass destruction ? She says in Syria and Iraq , violence is ` ` normalized , '' does n't draw threat of intervention . Wolfe : U.S. should rethink ties to Rwanda , which backs Congo , known for atrocities .