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.
Updated April 06, 2017. On the morning of December 7, 1941, the Japanese launched a surprise air attack on the U.S. Naval Base at Pearl Harbor in Hawaii. After just two hours of bombing more than 2,400 Americans were dead, 21 ships* had either been sunk or damaged, and more than 188 U.S. aircraft destroyed.