SANCTUARYBUENOS AIRES/SAN FRANCISCO Whenever Tori Nunn was bored, she went to Buenos Aires. Partly it was because Buenos Aires was a place she had never worked, so, essentially, no one knew her-what she had been. Partly, it was because in Buenos Aires, sitting beneath the natural awning of the jacarandas, their clattering shade striping her face, she could at last forget Greg. But perhaps more than anything else, she came to this inplete city because here she could begin again to define herself, as if now even her own shadow had bee unrecognizable. Here, in Buenos Aires, inhabited by the portenos - the port dwellers, as t
