The shares of Social Security benefits subject to the individual income tax have grown rapidly since 1984, when benefits first became taxable. Initially, no more than 50 percent of benefits were subject to tax for higher-income taxpayers, and all of those taxes were credited to the Social Security trust funds.
The effect of the attack of Pearl Harbor was that it forced the U.S. into a war with Japan; a war that ended in the unleashing of the worlds first, and hopefully last, use of a nuclear bomb in an attempt to defeat an enemy.
Midway is considered the turning point of the War in the Pacific. Prior to this, the Japanese had inflicted serious damage on American naval power with the bombing of Pearl Harbor, only failing to damage the carrier fleets. The battle of coral sea and several other skirmishes had damaged American fleets even more. At the battle of midway, the U.S. was only able to send 3 aircraft carriers to defend the islands against the Japanese four. Even though the Japanese had more ships, they did not know the Americans knew of the attack. Americans had successfully cracked a Japanese encryption detailing the assault force prior to the battle.