International News from CNN

NATO: Russia's buildup 'massive'

NATO's military chief warned Wednesday that Russian troops could begin moving on Ukraine within 12 hours of being given an order, amid fears that Moscow could seek to invade its eastern region.

Is Kim Jong Un more dangerous than his dad?

It might seem an understandable reaction to news Monday that North and South Korea had exchanged hundreds of shells across their western sea border. The incident occurred a day after Pyongyang had warned it was preparing to test another nuclear device, and just a week after it tested two medium-range ballistic missiles.

10 kidnapped and killed by Taliban, police say

A provincial council candidate and nine of his supporters were killed by the Taliban in Afghanistan two days after they were kidnapped, said Sakhidad Haidari, deputy police chief of northern Sar-e-Pul province.

Meet 'Nigeria's Mark Zuckerburg'

At 23, many people around the world are still at university -- Gossy Ukanwoke, on the other hand, had already started one.

South Korea investigates two suspected North Korean drones

Two drones, suspected of being from North Korea, have crashed in South Korea in the last two weeks, according to government officcials from the South. The discoveries raise questions over South Korea's air defense and the North's aerial capabilities.

Brazil tackling child prostitution for World Cup

The newly-renovated Castelao football stadium looms into sight up ahead. Driving just past it, we see women standing on street corners, leaning into cars and flashing nearly naked bodies in the low light.

Earthquake occurs in subduction zone

Michael Smerconish talks to NOAA's Frank Gonzalez about the relationship between Chili's earthquake and a tsunami threat.