'Permanent bone loss': Calgary study finds astronauts suffer on return to Earth

FILE - Canadian astronaut Robert Thirsk talks with students from Rockcliffe Elementary School as they get a first look at The Living In Space exhibit during its unveiling at the Canadian Aviation and Space Museum in Ottawa on Thursday, May 12, 2011. (THE CANADIAN PRESS/Sean Kilpatrick) FILE - Canadian astronaut Robert Thirsk talks with students from Rockcliffe Elementary School as they get a first look at The Living In Space exhibit during its unveiling at the Canadian Aviation and Space Museum in Ottawa on Thursday, May 12, 2011. (THE CANADIAN PRESS/Sean Kilpatrick)

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Under scrutiny, minister says RCMP's yearslong use of spyware tools is limited

Public Safety Minister Marco Mendicino is defending the RCMP’s yearslong and undisclosed use of spyware capable of accessing cell phone and computer microphones, cameras and other data as part of dozens of major investigations. Testifying before a parliamentary committee on Monday, Mendicino said the national police force's use of these tools has only be permitted in 'the most serious offences.'