mindblowingfactz: When the US Airspace was shut down following the 9/11 attacks, Canada diverted ove
mindblowingfactz: When the US Airspace was shut down following the 9/11 attacks, Canada diverted over 200 flights heading into the US to various locations around Canada to help neutralize any further threats. The action was known as Operation Yellow Ribbon, and Canada hosted thousands of stranded passengers until US airspace was reopened. -- source link