PBS NewsHour

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Scientists shined X-rays on the bums of bombardier beetles to determine how they make noxious butt sprays for defense. Illustration by DEA picture library/Getty Images. Scientists are pointing X-rays at the butts of bombardier beetles. Why, you ask...
Watch Video | Listen to the Audio JUDY WOODRUFF: Next, we explore questions about how scientific findings are published and verified, and whether allegations of fraud involving a top science journal are damaging credibility with the wider public....
Watch VideoRELATED LINKSWill Nigeria have its first-ever democratic transition of power since independence? Al Jazeera demands Nigeria release two detained journalists ahead of election Photos: Nigerians worried about safety, vote-rigging in...
Watch Video | Listen to the AudioRELATED LINKSWill Nigeria have its first-ever democratic transition of power since independence? Al Jazeera demands Nigeria release two detained journalists ahead of election Photos: Nigerians worried about safety,...
Watch Video | Listen to the AudioRELATED LINKSEPA issues final rules protecting drinking water, streams EPA decision not to classify coal ash as hazardous angers environmentalists How an EPA plan to cut carbon emissions is playing out in coal-rich...
RELATED LINKSLeadership under scrutiny, critics call for FIFA president Sepp Blatter to resign Why did it take so long to crack down on corrupt FIFA? FIFA faces probes for rigging the business of soccer JUDY WOODRUFF: A week that saw global soccer...