NEXT TIME John Kerry accuses President Bush of misleading the American people, remember Mary Ann Knowles. Knowles is the Hudson woman whose battle with breast cancer Kerry has turned into a campaign anecdote. Here is what Kerry said about Knowles during his acceptance speech at the Democratic National Convention on July 29: “What does it mean when Mary Ann Knowles, a woman with breast cancer I met in New Hampshire, had to keep working day after day right through her chemotherapy, no matter how sick she felt, because she was terrified of losing her family’s health insurance? America can do...