From the article: When BGP traffic is being sent from point A to point B, it can be rerouted through a point C. If you control point C, even for a few hour

From the article: When BGP traffic is being sent from point A to point B, it can be rerouted through a point C. If you control point C, even for a few hours, you can theoretically collect vast amounts of intelligence that would be very useful for government entities.