Fracking fluid is known to contain benzene (which causes cancer), toluene, and other harmful chemicals, but the exact substances and amounts in fracking fluids are typically kept secret because companies invoke "confidential business information" exemptions to right-to-know laws and rules. On Nov. 14, an environmental organization launched a website to give the public improved access to information on the chemicals used in fracking.

Over the past several weeks, 36 people have died and more than 500 others have been infected with fungal meningitis from tainted steroids obtained from a compounding pharmacy in Massachusetts. This industry prefers state regulation of its practices and has been fighting Food and Drug Administration (FDA) oversight for more than a decade. Some, including Rep. Ed Markey (D-MA) and FDA Commissioner Margaret Hamburg, are now calling for clear FDA oversight authority over compounding pharmacies.

In Hurricane Sandy's aftermath, government agencies have acted quickly to save lives and restore power and other basic essentials for those impacted by the storm. As recovery continues, federal and state agencies will be addressing another growing problem: the noxious materials such as oil, toxic chemicals, and raw sewage that the storm has released into waterways. The health of residents and first responders will depend on knowing what's around them so they can take proper precautions and mitigate risks.