Tohoku Earthquake, Tsunami and Nuclear Meltdown
After cooling systems at the Fukushima Daiichi nuclear power plant failed following Japan's magnitude 9.0 Tohoku earthquake and resulting tsunami, authorities in Japan struggled to bring several nuclear reactors under control. Gwen Ifill spoke with science correspondent Miles O'Brien and David Brenner of Columbia University's Center for Radiological Research about the science and health concerns at the plants.
After Japan Crisis, What's Next for U.S. Nuclear Policy, Plants?
There hasn't been a nuclear accident in the U.S. since three-mile island in 1979. But opposition to building nuclear plants here is on the rise. Here's a look the series of events that caused the meltdown at the Fukushima Daiichi Nuclear Power Plant, and where U.S. Nuclear policy stands today. Miles O'Brien reports.
Revisiting Chernobyl: A Nuclear Disaster Site of Epic Proportions
The nuclear crisis in Japan has renewed interest in the 1986 nuclear meltdown at Chernobyl in Ukraine. Science correspondent Miles O'Brien traveled to the site of the world's worst nuclear disaster, shortly before its 25th anniversary.
Earthquake Prediction: Could We Ever Forecast the Next Big One?
In Italy, six seismologists and one government official were charged with manslaughter because they didn't predict the 2009 earthquake in L'Aquila, Italy, which killed more than 300. Miles O'Brien reports from Japan on efforts to predict big earthquakes before they strike.
Safecast Draws on Power of the Crowd to Map Japan's Radiation
Eight months after the nuclear accident in Japan, ordinary people are using new technology and the power of crowdsourcing to track radiation hotspots. Miles O'Brien reports from the evacuation zone around Japan's Fukushima Daiichi Nuclear Plant, where he traveled with a team of "volunteer radiation contamination gumshoes," who use geiger counters to gather radiation readings and then map them for the public.
How Do You Protect Against a Tsunami?
Researchers in Japan are studying efforts to limit the most catastrophic damage from tsunamis. Miles O'Brien looks at breakwater systems, seawalls and other attempts at repelling giant waves, along with advanced evacuation strategies. But building coastal towns that can repel giant waves is not easy or cheap, he reports.
Miles O'Brien traveled to three continents to examine the safety and future of nuclear energy in the wake of Japan's reactor disaster. In this excerpt from the Jan. 17 edition of "Frontline," he visits the Indian Point Power Plant in Buchanan, N.Y.
Near Fukushima, A Big 'Guessing Game' Over Radiation's Long Term Risks
March 11 marked a year since a massive earthquake and tsunami struck Japan, causing a partial meltdown of nuclear reactors at the Fukushima plants. In the first report in a series on Japan's recovery, Miles O'Brien documents the country's cleanup attempts at homes, schoolyards and roads as scientists struggle to determine whether residual radiation contamination could be potentially harmful.
After 500 Years in Family, Farmers Forced Off Land by Fukushima
Japanese residents face challenges as they struggle to clean up contaminated farms, roads and schoolyards in Japan. Miles O'Brien reports on this and a family of rice farmers, who lived on the same land for 500 years and 30 generations, five miles from the Fukushima Daiichi Nuclear Plant.
Fukushima's Food Fallout: Testing Groceries for Radiation in Japan
Promoting produce from Fukushima, a Tokyo store lists the cesium levels beside the price -- just one way life has changed a year after an earthquake, tsunami and nuclear accident struck Japan. In the final report in his series, Miles O'Brien examines food-safety concerns and a cottage industry of testing groceries for radiation.
Would a Major Earthquake Sink Portland or Seattle in Liquefied Soil?
Though the impact of Wednesday's 5.9-magnitude earthquake off Oregon's coast was minimal, a lesser-known risk of temblors -- a phenomenon called liquefaction where sandy soil turns to liquid and loses its ability to support weight -- has some scientists worried. Tom Bearden reports what's being done to prepare for a major quake.
Are U.S. Nuclear Plants Ready for a Fukushima-Like Meltdown?
When Chairman Gregory Jaczko resigned from the Nuclear Regulatory Commission this week, reports suggested it was linked to battles within the commission over safety requirements. In the wake of the Fukushima nuclear disaster, Miles O'Brien reports on how government regulators in the U.S. set the safety bar for nuclear plants.
Invaders Hitch a Ride on Tsunami Debris
"If you take nothing else from this lecture -- a tsunami is a flooding hazard," said Eddie Bernard, and then he repeated it: "It's a flooding hazard."