This was the scene of the worst recent violence in which security forces killed at least 70 protesters.

It was some of the worst violence since the insurgency began five years ago.

The attack set off five days of the worst violence since the 1979 revolution.

It was the worst violence in this city since the war.

At the time, it was the worst violence the country had experienced since November 2008.

More hands go up: "Can there be good and bad violence?"

The attacks marked some of the worst political violence this island nation has seen.

There are two kinds of violence - good or bad.

Police officials said it was the worst violence here in more than a decade.

The fighting was the country's worst ethnic violence in decades.