What is the air traffic controller's mandatory immediate action upon receiving a pilot report (PIREP) of severe low-level wind shear on final approach?

1. Instruct the reporting pilot to file a written complaint with the airline safety office within 48 hours
2. Broadcast the wind shear warning to all arriving and departing aircraft immediately on the tower and approach frequencies, and include it in ATIS broadcasts
3. Immediately cancel all IFR flight plans across the entire FIR for the next 24 hours
4. Order all aircraft on final approach to execute immediate touch-and-go landings