Yeah, if you work somewhere you can easily get clearance, it's definitely worthwhile to do so. Then you don't have to worry. If you don't, it's probably best no

Yeah, if you work somewhere you can easily get clearance, it's definitely worthwhile to do so. Then you don't have to worry. If you don't, it's probably best not to mention it, because it invites trouble and in the general sense (YMMV), it's not very likely that the company will sue you unless you actually are doing something nefarious.