In lieu of the next World War, it's time to share my public key so you can send me encrypted messages, or verify if a message sent my from me is legit.
It also helps if you share your public key with me, or at least have it up on a key server.
To learn about PGP encryption, and why privacy and electronic security is so important, read this:
http://www.phildev.net/pgp/gpgwhy.html by the guy who created PGP.
More info can be found here:
And my old post on cryptography: