OTTAWA — Ottawa's decision to let TikTok remain in Canada — now with more security guarantees from the Chinese-owned firm — reverses its previous decision to ban the company over national security concerns. The federal government banned TikTok from operating and having a physical presence in Canada in 2024, then recently asked the Federal Court to set aside the order to permit another review. Privacy and safety concerns have been raised about TikTok and its China-based parent company ByteDance Ltd. because of Chinese national security laws that compel organizations in that country to assist with intelligence gathering. The agreement to…