Although there is technology available for secure e-mail, widespread deployment is still problematic.
Although there is technology available for secure e-mail, widespread deployment is still problematic.
虽然已有技术可用于安全的电子邮件，但广泛部署仍是个问题。
Although there is technology available for secure e-mail, widespread deployment is still problematic.
虽然已有技术可用于安全的电子邮件，但广泛部署仍是个问题。