root

Hi ... thanks for this great software. I am running v2.0 on Ubuntu 18.04. My disk is set up with partitions for:
- / (root)
- swap
- /home

Question 1:
When go to Preferences / Drives to set the wiping folder, I can see it defaults to a folder in /home. For added security, should I also be specifying a folder in the / partition?

Question 2:
Am I right in thinking that Wipe Free Space will automatically wipe the swap partition?

Thanks!

Everytime I try to run Bleachbit as Administrator, I keep getting the following error in terminal window.

(bleachbit:17484): IBUS-WARNING **: The owner of /home/username/.config/ibus/bus is not root!

I am on Ubuntu 15.10.