Shocking video shows teens attacking vulnerable man
The victim appears unable to speak and makes a wailing sound while waving his hands in panic
North Korea claims it has conducted hydrogen bomb test
A hydrogen bomb is more powerful than plutonium weapons which was used by North Korea in its three previous underground nuclear tests
Govt in frustration after harsh criticism over its social security reform proposal
It tries to overcome the harsh criticism faced by attacking and resorting to accusations saying that pension cuts were made by previous governments
