Personal values---which depend a lot on neurochemistry, see
Haidt---aside, what you want to be looking out for in terms of the "country heading for disaster" as opposed to "you heading for disaster" is
1) Are substantial amounts of money being paid out to unproductive sectors of the economy? For example, retirees, social transfers, the health industry (twice the waste of the next worst offender in the OECD), the defense industry (far bigger than the next OECD),...
1a) If this happens suddenly on a large scale, it results in consumer inflation, like Weimar Germany.
1b) If this happens slowly on a large scale, it results in Greece.
2) Are there any financial time bombs? Services/production done in the past paid for with a promise to pay in the future. In particular, are these promises based on magic (optimistic return rates)? E.g. Chicago, Greece, Detroit, ... [In general, you'd want to fund projects with a long horizon of usefulness, e.g. a bridge, with debt because people in the future will use the bridge too and should therefore pay for it too; and projects with a short horizon with income (taxes), because future people have no use... e.g. pension payments. If funded by debt, the present is on the hook for work at that was done long ago.
3) Are there any demographic time bombs? The ratio of working to non-working as a function of age. Health, non-health as a function of age. This stuff is extremely predictable. Due to the short quarterly or next election focus, the two governing systems of "democracy" and "capitalism" (I deliberately put these in quotation marks, go figure why) are remarkably short-sighted.
4) Are there any environmental/ecological/resource time bombs? Ditto. Also, infrastructure. Are we deferring fixes that ought to be done before they get even more expensive? Is the country investing for the future (best) or is it just letting things go (worst).
5) What's the culture? Is it a culture of corruption (e.g. cheat on taxes)? Is it a culture of profit at all costs (e.g. outsource production, then insource workers, double-whammying the many for the benefit of the few).
Also consider whether there are unjustified assumptions "things everybody knows" that might fall away in the future. THese are so-called anti-assumptions. Things we know to be true which actually aren't. Things we take for granted. E.g. certain advantages the US enjoys will probably not persist, e.g. #1 position, petrodollars, the Bretton Woods, other things?
It's been predicted that the Westphalian system will not endure. It's being slowly dismantled. Consider, for example, the TPP which is being rushed through the legislative system on a semi-secret basis despite its massive impact. The public is not allowed to read the law, but guess who wrote it ... power is being handed over to the transnationals behind the curtains.
Conversely, if the countries of the world were to avoid the 1-5% drag on GDP from failing to enact global solutions to the problems in (4), they'd have to cede to a supernational structure instead. That's almost going in the opposite direction.
It's pretty complicated.
SNAP is the least of my worries.