We are in safe hands. Hands of young men like my nephew who are willing to go to sea in submarines to patrol our shores. It always makes big news when a mistake is made people mocking instead of seeing what can be done to improve matters. tracing paper has been used for generations to plot courses and protect charts for the simple reason that it can be rolled up and kept if needed. Acetate is certainly more transparent but it requires special pens and is very slippy and stiff.