For varying definitions of safe. This is interesting and someone linked it last time DDT came up: http://www.gladwell.com/2001/2001_07_02_a_ddt.htm http://www.

For varying definitions of safe. This is interesting and someone linked it last time DDT came up: http://www.gladwell.com/2001/2001_07_02_a_ddt.htm http://www.gladwell.com/2001/2001_07_02_a_ddt.htm