Now that you mention it, I wonder what it will be? I'm almost tempted to look ahead to see what the day's paper looks like on that day. After all, the primary purpose of the Doolittle raid was in increase the moral of the American people, it didn't and couldn't inflict any significant strategic damage.
It didn't inflict any significant tactical damage. It actually was a strategic success, causing the Nips to beef up home defenses that wouldn't be needed again for several years, at the expense of front line units.