Former Chernobyl residents take a bittersweet visit home

For residents of Chernobyl, a three-day evacuation turned into a 30-year exile.

On the morning of April 26, 1986, no one could yet tell that a meltdown in reactor 4 of the nuclear plant in then-Soviet Ukraine was poisoning the air with so much deadly radioactivity that it would become the world's worst nuclear accident.

Now, as some survivors returned to their hometown of Pripyat on the eve of the anniversary, memories of confusion and sacrifice abound.