FROM Walt Bogdanich
Medical Radiation: Are Americans Getting Too Much of a Good Thing? Since long before the Fukushima nuclear-plant disaster, doctors and others have been alarmed by Americans' increased exposure to radiation. But Japan's nuclear disaster has reawakened fear of the invisible enemy that's also used to discover diseases and save human lives. Even radiologists say Americans are getting too much of a good thing, but not from fallout, airport scanners or cell phones. Doctors are ordering seven times more radiation scans than they were 30 years ago, while diagnoses of life-threatening conditions have hardly risen at all. Are so many scans really needed for medicine or to avoid lawsuits, pay back investments in expensive machines and satisfy the demands of patients?
Rhetoric and brinksmanship on the Korean Peninsula For 25 years, the US has viewed North Korea's nuclear program with increasing alarm. Now President Trump says this country has lost its "strategic patience." We hear what he's actually doing… and what might come next.
100 days of executive action: Accomplishment or posturing? President Trump's first 100 days have featured a flood of high-profile executive orders. Which ones do what he says they do, and which ones don't? How are Trump voters feeling now?
Will the march for science politicize objective research? Protesters are gathering all over the country for tomorrow's Earth Day March for Science. Since President Trump has proposed massive cuts in basic scientific research, will the movement be perceived as partisan politics — whether scientists themselves like it or not?
Why Don't Facts Matter? "Fake News" may have a long history, but social media and 21st Century politics have brought it front and center. One reason for its appeal and its power is the tendency of so many people to cling to their beliefs — even when confronted with contradictory evidence. Today, another look at the Emotional States of America.