The fight to save a Centuries old Nova Scotia lighthouse

US and Iran struggle for power over Strait of Hormuz

Who controls the Strait of Hormuz? Escalation continues between the US and Iran with attacks launched on both sides. President Donald Trump says the US will be the "guardians" of the strait and charge tolls. Iran says the US has no role in how the strait is run. Gregg Carlstrom, Middle East correspondent for the Economist takes us through the latest. Behrouz Bakhtiari, assistant professor of operations management at the DeGroote School of Business at McMaster University, explains the impact on supply chains, and the potential price increases on energy and goods.

The fight to save a Centuries old Nova Scotia lighthouse

The Seal Island lighthouse sits on a remote island of the southwestern tip of Nova Scotia. The lighthouse has served as both a welcome and a warning to mariners who travel along the coastline since 1831. But now its future is uncertain, as a new steel tower is being built to replace it. Chris Mills is a former Seal Island lighthouse keeper. He talks to guest host Piya Chattopadhyay about the fight to save the Seal Island lighthouse.

Late Jurassic Park actor inspired a generation of paleontologists

Do you remember when you first saw Jurassic Park? Actor Sam Neill played the role of paleontologist Dr. Alan Grant – and inspired a generation of dinosaur lovers. Guest host Piya Chattopadhyay talks to François Therrien, a paleontologist and curator at the Royal Tyrrell Museum in Drumheller, Alberta, about the legacy of Sam Neill, who died this week.

Deadly shooting at Toronto’s Salsa on St. Clair festival

Toronto's Salsa on St. Clair festival came to an abrupt end on Saturday night, after a shooting that left two people dead and several others injured. Police say there was an "exchange of gunfire" between two suspects. We get the latest from CBC reporter Lorenda Reddekopp who was enjoying the festival on her day off when the chaos erupted.

New blood tests detects recurring cancer early

Scientists at the Princess Margaret Cancer Centre are using an emerging blood test technology to look for small traces of cancer in a patient's bloodstream. It will make it easier and faster to detect recurring cancer in its earliest stages but more research needs to be done before it can be used confidently or on people without cancer. Guest host Piya Chattopadhyay speaks with Dr. Lillian Siu is a senior scientist at UHN's Princess Margaret Cancer Centre and a scientific lead at the Peter Gilgan Centre for Early Cancer Detection Research about the potential of this breakthrough research.