If a computer is a laptop with a built-in battery, then there is no risk (unless the battery is absolutely dead) of unplugging it from power. However, of a non-battery backed up PC (like an iMac or a Desktop), there could be problems, depending on PC configuration and current activity.
Updated February 23, 2017. The Haymarket Riot in Chicago in May 1886 killed several people, and resulted in a highly controversial trial followed by executions of four men who may have been innocent. The American labor movement was dealt a severe setback, and the chaotic events resonated for many years.
HAY-HERRÃ¡N TREATY. HAY-HERRÃ¡N TREATY was signed by Secretary of State John M. Hay and Dr. TomÃ¡s HerrÃ¡n, the Colombian minister, on 22 January 1903. It allowed the French-controlled New Panama Canal Company to sell its option on a canal route through Panama to the United States.