2003 ricin letters lethal dose of ricin in humans provided that exposure is from injection or inhalation. Ricin is easily purified from castor-oil manufacturing waste. It has been utilized by various states and organizations as a weapon, being most effective as an assassination weapon, notably in the case of the 1978 assassination of Bulgarian dissident Georgi Markov. On January 4, 2004 new federal transportation rules took effect which directly affected the over-the-road trucking industry in the United States. The rules took effect with a 60-day grace period and were aimed at reducing fatigue related accidents and fatalities. Called the most far-reaching rule changes
London Waterloo station Aldershot, which was designed equally for the anticipated increase in military traffic in the area as well as commuters. Waterloo was bombed several times during World War II. On 7 September 1940, the John Street viaduct immediately outside the station was destroyed by a bomb, which prevented any services running for 12 days. Full services did not resume until 1 October, which particularly affected mail traffic with over 5,000 unsorted bags piling up on the station platform. Waterloo was closed again after bombing on 29 December 1940. It re-opened on 5 January 1941, on the same day that station offices