War is probably the largest line item for most people. Losing decades long wars is expensive. You have the social decay that comes with focusing abroad rather than at home. Homelessness, drug addiction (my friends probably were killed by heroin made from poppies that a marine was tasked with protecting, maybe some of yours too)

Running a close second (maybe first) is regulatory capture, things like patents and certificates of need. Requirements for patented safety features in cars, patents on medicine, copyright on characters your grandma grew up with.