WEBSTER GROVES, Mo. _ Ken Warren marches across his own front lawn, places two bags of groceries down on the concrete stoop, pushes the doorbell and retreats 25 feet.
Half a minute passes in silence. Did she hear? Warren, 76, cautiously approaches again and has to hustle back as it swings opens.
His wife, Tao Jiang Warren, 56, steps into the cold sunlight of Thursday afternoon, smiles and waves.
