Voters in four US states head to primaries today, while a new report indicates that global conflicts have reached their highest level since World War II.

Voters in four states head to the polls today for their primaries. Here are the races to watch. And, global conflicts are at their highest level since World War II, data shows. <img alt="People vote at a polling location at the Metro Headquarters Building during California" src="https://feeds.npr.org/1004/undefined" /><p>Voters in four states head to the polls today for their primaries. Here are the races to watch. And, global conflicts are at their highest level since World War II, data shows.<...