current user CANNOT?

How do I do this…

I want to hide user’s email addresses from anybody who is not a network admin..

Is there such a thing as !current_user _can? If not what should I use?

Eg

// prevent subsite admins from seeing user’s email addresses.

if ( !current_user_can(‘manage_network’:wink: ) {

add_action(‘manage_users_columns’,’remove_user_posts_column’:wink:;

function remove_user_posts_column($column_headers) {

unset($column_headers);

return $column_headers;

}

add_action(‘manage_users_columns’,’remove_user_email_column’:wink:;

function remove_user_email_column($column_headers) {

unset($column_headers);

return $column_headers;

}

}

Thanks!