A nurse draws a dose of mumps-measles-rubella, or MMR, vaccine. A major measles outbreak traced to Disneyland has brought criticism down on the small but vocal movement among parents to opt out of vaccinations...

AP Photo/Jose Luis Magana

USA supporters cheer for their national team during the group G World Cup soccer match between the USA and Germany at the Arena Pernambuco in Recife, Brazil, Thursday, June 26, 2014. (AP Photo/Ricardo...

Pipes for the Dakota Access Pipeline are stacked at a staging area in Worthing, S.D., in 2015.