The US Dollar Index (DXY) measures the value of the Dollar against a basket of currencies on a trade-weighted basis. The index started in March 1973 with a base value of 100. Since then, it has made a high of 164.72 in February 1985, and a low of 70.69 in March 2008.
Coal tar, which is distilled from coal, has been used in dandruff shampoo for decades. But it is now banned in all consumer goods in Europe because of health concerns. California, using its tough anti-toxics law, would be the first state in the country to restrict use of the substance.
For instance, you cite the U.S. ban, but even that does permit use of the chemical in the event of a malaria outbreak. So I've included a few links to hopefully educate everybody. DDT is a powerful tool but the residual effects in the environment need to be controlled. The U.S. EPA is preparing to cap a deposit off DDT off the California Coast next year at great expense. Some of those links are included too, as anyone spouting off about DDT should have a decent background on the subject.