Ideally this is the User eXperience (UX) for an activist:
- Insert the USB into a computer
- Create a long passphrase for encrypting the USB device
- Enter username, password and email for either the noblog or riseup email account
- That's it! Now the the activist can just insert the usb into a computer, reboot or turn on the computer and then type in the long passphrase to decrypt the device. Everything should be setup to read and write encrypted emails.