It’s encrypted partition. You can keep bookmarks password database file and kleopatra keys which is pretty nice. And if you’re building a file journalistic story I would imagine that being good too. Only thing I wouldn’t use persistence file is if doing a virtual machine tails. When using virtual box, run live - don’t create a drive. And probably use a vpn on your host OS if you don’t have a bridge setup on tor. But virtual box. No persistence available If I’m using usb (I’ve found it tough to use problems with some video adapter and Wi-Fi adapters. But bootable usb you can use micro sd in a cheap adapter. Anything goes wrong just swallow the micro sd. Soon as you pull the usb out it first destroys the memory files so they can’t freeze the ram sticks. But you gotta be doing some shit online to have that type of attention. Wondering if can make a bit service on a persistent drive. And email spoofer. You can access fb within tor network. If you wanted to post truth on there without worrying about your job or getting arrested. Like “hate speech”. I know some European countries are locking truth down. So it’s becoming more prevalent to use identity security software more and more.