The latest on one of the world’s most extensive cyberattacks ever.

Seventy-eight percent of Americans think a special prosecutor should be appointed to investigate Russian meddling in the U.S. election, according to a new NBC-Wall Street Journal survey.

The monarch butterfly’s remarkable migration is in peril. Its habitat has been decimated by rapid urbanization and changing agricultural practices. Could cities come to the rescue?

They can play blackjack, dance and climb walls. The Museum of Science and Industry brings back its interactive exhibition – with a few new additions.

Watch the May 11, 2017 full episode of "Chicago Tonight."

Cook County has approved hundreds of low-dollar legal settlements in connection with conditions at the Cook County Jail.

Chicago Police Board President Lori Lightfoot talks about misconduct findings against all 15 officers who faced discipline last year.

The Chicago Police Department documented 72 hate crimes in 2016 – a 20-percent spike compared to 2015. That increase falls in line with hate crime upticks in other large U.S. cities, like New York City, Los Angeles and Washington, D.C.

The author of a new book explores the lives of young factory workers exposed to radium in the 1920s.

A conversation with actors Anthony Murphy and Chicago’s own Jonathan Weir from the production “Aladdin.”

We visit the Art Institute of Chicago to find out more about the 19th century oil painting “Arrangement in Grey and Black, Number One” – commonly known as “Whistler’s Mother.” 

Watch the May 10, 2017 full episode of "Chicago Tonight."

A retired former FBI supervisor and two former assistant U.S. attorneys share their reactions to the ouster of FBI Director James Comey.