A Calgary man has been arrested and charged after posting death threats against Prime Minister Mark Carney on YouTube, according to police. The RCMP's National Security Enforcement Team received information in July about the threats, which were posted on a YouTube account. The suspect, Jamie Dacosta, a 31-year-old Calgary resident, was arrested and charged with uttering a threat to the prime minister. Dacosta is expected to appear in court today. The threats were identified through an investigation that led to his arrest. The case highlights ongoing concerns about online security and threats against public figures. Police have not released further details about the content of the threats.