The laser tracking system would work by giving space craft and satellites, which are able to be maneuvered, time to move out of the way of an incoming chunk of debris.
VOA: standard.2010.07.24
For purchases made in 2012 and later, you should be tracking your out-of-state purchases and maintaining complete records to accurately determine and report your use tax due.
As we stand in the Thames Barrier control room, computer screens tracking the waves out in the North Sea, I ask him about the value of remembering the catastrophe of 1953.