Why the search for survivors of a deadly earthquake in Tibet is so challenging. Then, Justin Trudeau resigns and Parliament is put on hold. What comes next? Plus, Ukraine claims it set a scooter bomb that killed a Russian general.

Donald Trump claims the U.S. is "subsidizing" Canada "to the tune of $100B," but what does he mean? Andrew Chang explains. Then, why the Palisades wildfire in Los Angeles County, is so destructive. Plus, how and where the "Big One" could hit.