As mobile phone use grows, more young men are calling women at random, hoping to strike up a relationship, but sometimes harassing them.
Photographs and a map show the scene after at least four people were killed and 20 injured in a burst of violence outside Parliament.
The area around the Palace of Westminster was evacuated, and lawmakers inside the building were under lockdown.
The administration of Virginia Raggi, the Five Star Movement candidate, is struggling, but the mayor maintains that time and patience will do the job.
The propaganda video, which depicts a United States aircraft carrier being consumed by computer-generated balls of fire, coincided with a joint American-South Korean military exercise.
Mr. McGuinness helped negotiate peace in Northern Ireland after decades of sectarian violence and became a senior official in its power-sharing government.
He is a child of privilege turned populist politician, an antidrug crusader who has struggled with drug abuse. Obsessed with death, he has turned his violent vision into national policy.
The test indicated that the North was developing a more sophisticated engine, South Korean officials said, declining to provide further details.