Authorities in Texas say -- they are not ready to give up hope. Three days after devastating flash floods, rescue workers are still digging through debris in a desperate attempt to find survivors. There are also questions about how the floods caught officials by surprise - and whether possible warning signs were missed. 

Also: Today is the Dalai Lama's 90th birthday. He is one of the world's most influential spiritual leaders - and a symbol of hope and freedom for Tibetans. We'll take you to Dharamshala, India - where the Dalai Lama lives in exile - to hear about the festivities, and simmering tensions over how his eventual successor will be selected. 

And: In the face of trade tensions with the U.S., some auto industry leaders in this country say it's time for Canada to steer our own destiny - by building cars entirely within Canada's borders. But some experts say that task is easier said than done.

Plus: Colombia's rebel groups recruit teens through TikTok, Homes in Canada's biggest cities going unsold, and more