What do you think the "very specific process" involved for the federal government waiving immunity to tort claims? I assume that is what you mean by "waive torts" which is a phrase that doesn't really make sense. Since it is "very specific", can you describe it?
Again, you may want to carefully read the article you linked, and linked articles within such as the one on the Federal Tort Claims Act: https://en.wikipedia.org/wiki/Federal_Tort_Claims_Act