If you think healthcare.gov was a mess, in the USA there are more branches of federal government, 50 state governments, and countless local governments whose technology is inadequate for serving its constituents.
Things like healthcare, visas, and electricity all rely on aging software projects. Yet, some of these systems don't have strong backups, are not automated, and may run on infrastructure like Windows XP. Some parts are ticking timebombs in terms of security and upkeep costs.