Remaining vigilant toward this ever-present threat means constantly learning how better to protect ourselves. But primarily it reminds us that we must fight and win the war on terror so that we do not have to fight it here in America.
I currently use Ubuntu Linux on a standalone laptop - it has no Internet connection. I occasionally carry flash memory drives between this machine and the Macs that I use for network surfing and graphics but I trust my family jewels only to Linux.