CBC | World News Search for Mexico earthquake survivors enters Day 4, with some success 2017-09-22T01:27:27.000000000-04:00 Survivors are still being pulled from rubble in Mexico City as rescue operations stretch into a fourth day Friday, spurring hope among desperate relatives gathered at the sites of buildings collapsed by a magnitude 7.1 earthquake. Canada sending bomb disposal experts to Iraq to train security forces 2017-09-21T20:57:40.000000000-04:00 A handful of Canadian army combat engineers will soon be in Iraq to train local security forces in the finer points of detecting and defusing roadside bombs, the Liberal government announced Thursday. Physical activity helps people worldwide 2017-09-21T19:13:26.000000000-04:00 Our steps count towards reducing premature deaths regardless of how they're accumulated, a large, global study affirms. Finding Frida: the search for the Mexican schoolgirl that never was 2017-09-21T18:51:28.000000000-04:00 Among the ruins of a Mexican school, a fist became a sign of hope. The raised fist: a signal to everyone to be quiet. Rescuers going through the remains of Enrique Rébsamen school were listening, hoping to hear from a girl trapped beneath the bricks and cement. A girl who, it turns out, was never... France threatens to skip Olympics over North Korea-U.S. tensions 2017-09-21T18:42:24.000000000-04:00 France's Winter Olympics team will not travel to the 2018 Games in South Korea if its security cannot be guaranteed, French Sports Minister Laura Flessel said on Thursday, raising the first major doubts by a participating country over the event. Archeologist finds sunken German submarine from WWI 2017-09-21T17:44:22.000000000-04:00 The well-preserved wreck of a First World War German submarine, possibly still containing the remains of its 23 crew members, has been found off the Belgian coast. Billionaire L'Oréal heiress Liliane Bettencourt dies at 94 2017-09-21T17:40:42.000000000-04:00 Regularly named France's richest person and for years the wealthiest woman in the world thanks to her L'Oréal inheritance, Liliane Bettencourt has died in Paris at the age of 94. Justin Trudeau says 'the world benefits' with Canada on UN Security Council 2017-09-21T17:02:59.000000000-04:00 Prime Minister Justin Trudeau says that Canada and the world benefit when Canada is a member of the UN Security Council, part of his campaign to get a seat there in 2021. Mexico earthquake: Rescuers race to free survivors from collapsed buildings 2017-09-21T16:41:19.000000000-04:00 Rescuers swarmed over rubble with shovels and picks on Thursday in a frantic search for survivors two days after the earthquake in Mexico, focusing on 10 collapsed buildings where people may still be alive. But an official said a missing schoolgirl whose fate captured the nation "did not exist," ... Aaron Hernandez's brain showed 'severe' case of CTE: Lawyer 2017-09-21T16:22:51.000000000-04:00 Aaron Hernandez's lawyer says the former New England Patriots tight end's brain showed severe signs of the degenerative brain disease chronic traumatic encephalopathy.