Body burden. Toxic trespass. Chemical contamination. What does it all mean?Each of these phrases refers to the load of synthetic chemicals that each human being on this planet carries. Yes, even you. Not even people who practice subsistence fishing in remote Alaskan villages escape the chemical background noise of the industrial age.In fact, those people can be more heavily contaminated with mercury, arsenic, lead, PBDEs and other chemicals than people living in a city because...