North Korea Threat: US Responds With Missile Defence Test

The US in a direct response to North Korea's persistent  missile tests, says it has successfully tested its  anti -missile system and has flown its
B-1 bomber over North Korea peninsula. BBC reports.

North Korea, had on Friday test- fired a second intercontinental ballistic missile (ICBM) and claimed that the test proved that the entire US was within its striking range.