United States Secretary of State Antony Blinken on Friday (September 22) said that America is “deeply concerned” about the allegations raised by Canadian Prime Minister Justin Trudeau regarding India’s involvement in the killing of a a Sikh separatist, designated as a terrorist in India, adding that it is critical that the investigation into the matter proceeds.United States Secretary of State Antony Blinken on Friday (September 22) said that America is “deeply concerned” about the allegations raised by Canadian Prime Minister Justin Trudeau regarding India’s involvement in the killing of a a Sikh separatist, designated as a terrorist in India, adding that it is critical that the investigation into the matter proceeds.