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
Waterloo Bridge (1940 film) in New York and shortly after in London to positive reviews. "It owed much to the dialogue of Robert E. Sherwood's original play, and to good, shrewd screen directing." The film is recognized by American Film Institute in these lists: According to MGM records the film earned $1,250,000 in the US and Canada and $1,217,000 elsewhere resulting in a profit of $491,000. "Waterloo Bridge" was dramatized as a half-hour radio play on two broadcasts of "The Screen Guild Theater", the first on January 12, 1941 with Brian Aherne and Joan Fontaine and the second on September 9, 1946 with Barbara