“He never writes to me no more,” she says.“How can he write to you when he’s been dead for fifty years?” I say.Then she cries a bit.After a while, she brightens up, and says: “He never writes to me no more.”And I say: “How can he write to you when he’s been dead for fifty years?”And she cries again.“Grandma,” I say, “Korea was a long time ago. Grandpa was a long time ago. It’s 2004, Grandma. We’ve got iPods. And texting, so you don’t need letters.”