That reply was at his statement that “a prudent mariner would only use paper charts”, I don’t care what the navy does with there paper charts after a voyage. I have been on all types of vessels that are approved by there port state and class to be “paper less.” According to this article: http://www.sperrymarine.com/news/electronic-chart-system-first-us-navy-ship-certified-paperless-navigation, there are many US Navy Ships that are currently paperless. If your company or government does not provide you with paper charts are you going to buy them and correct them on your own dime?