The United States' decision to use two aircraft carriers for morale boosting purposes may come at a great cost as aircraft carriers have turned out to be the most important ships in the mid 20th century and the country only has four deployed in the Pacific theater. While some argue that there may have been a real world military effect to this decision, it is not worth the risk of losing two carriers in early 1942.
The attack on Pearl Harbor during WWII destroyed much more than just the ships and planes. The loss of skilled individuals and their institutional memory made it nearly impossible to recreate the weapon system of the US Naval force quickly.
A shooting on Parliament Hill in Ottawa has left a soldier and suspect dead while airstrikes on ISIS have taken out infrastructure and key leaders. Additionally, a suicide bomber exploded his vest outside France's National Soccer Stadium.
A story of a boat trip is interrupted by a man's girlfriend and a naval officer asking if the boat is capable of going underwater to see the sunken USS Arizona.
In an attempt to prevent war, the Japanese Prime Minister proposed an agreement with Roosevelt, which eventually led to the Atlantic Charter. However, the high-minded western democratic ideals outlined in the charter seemed directed squarely at Japan, leading to questions of hypocrisy by other Asian countries.
A foreign government accessed and stole proprietary information from a private company with contracts with the US Navy, revealing the possibility of privileged access into the US Navy's network. This kind of attack is unusual and signifies a shift from government-to-government spying to economic espionage.