"…as far as we know. But one of the journalistic challenges here is that we don't know a lot about MRSA, and so the challenge in my Thursday column was how to raise public concern about a legitimate public health issue without becoming alarmist and exaggerating the danger. It's a very fine line, especially when we journalists tackle issues in science or public health, and I trust you'll let me know if you think I tumbled off this tightrope."