Microsoft's Firefox killer?

So will the latest security enhancements to Internet Explorer be enough to stem the defections to Firefox?

I put the question this afternoon directly to Mike Nash, one of the hot shots in Microsoft's security business and technology unit. Unfortunately, I don't have any news to report, as Nash did a great James Brown impersonation, dancing around my question without breaking a sweat. I asked another way, but he again demonstrated singular skill in ducking the query. Well, I tried.