Four people were killed in the attack inside the Owl Bar in Anaconda, Mont. The authorities are still searching for the suspect, an Army veteran who lived nearby.

© Janie Osborne for The New York Times

From land, a rip current can appear relatively calm, as a strip of water that extends out between breaking waves. Its appearance can be deceiving.

© NOAA, via Associated Press

From land, a rip current can appear relatively calm, as a strip of water that extends out between breaking waves. Its appearance can be deceiving.

© NOAA, via Associated Press

A newly enacted “visa integrity fee” will apply to millions of foreign visitors, including travelers from Mexico, India, Brazil and China.

© Caitlin Ochs for The New York Times

Summer is a busy time for lighting strikes, which kill about 20 people and injure many others across the United States each year, officials said.

© Gary Hershorn/Getty Images