What does secret key not protected mean ?

[Yusuf Goolamabbas]

Hi, I just downloaded and compiled GPG 0.90 on a Linux 2.0.36 machine
and I made the gpg binary suid root. I created a key-pair and then did 
gpg --edit-keys <userid>

I get this mesg
gpg : NOTE secret key <key id> is not protected
Secret key is available

Any ideas why I get such a mesg and what can I do to make secret key
protected

Cheers, Yusuf

-- 
Yusuf Goolamabbas
yusufg at huge.net