NEW : dozens killed a day . Homs asks two-hour humanitarian pause in fighting . `` Assad can still make the choice to end the violence , save lives and spare his country from descending further into ruin Clinton says European security forces can help `` guns fall silent '' Evacuation of wounded and sick begins in Homs .
NEW : dozens killed a day . Homs asks two-hour humanitarian pause in fighting . Clinton says European security forces can help `` guns fall silent '' Evacuation of wounded and sick begins in Homs .