Add privacy settings
Currently the Secret setting defaults to being Unchecked thereby making our goals public. It seems that in the interest of privacy, it should default to being Checked.
Actually, I would rather have a Public/Private selection that defaults to Private for new goals.
Additionally, it might be nice to provide a list of email addresses or users that can view it. That would be even more control. But I'm not sure it wold be worth the effort.