Article Photos: Op-ed: Junk science, from SDI to hydraulic fracturing

$Hydraulic fracturing is opposed by some of the same groups that worked to discredit President Reagan's Strategic Defense Initiative 30 years ago. (AP Photo/David Zalubowski, File)$

Hydraulic fracturing is opposed by some of the same groups that worked to discredit President Reagan's Strategic Defense Initiative 30 years ago. (AP Photo/David Zalubowski, File)