6 ms·
By volume and especially by weight, time sensitive mail deliveries are a tiny, tiny fraction of the bulk of coal, grain, scrap metal, etc. that make up most fre
by devb 13y ago
By volume and especially by weight, time sensitive mail deliveries are a tiny, tiny fraction of the bulk of coal, grain, scrap metal, etc. that make up most freight traffic.
- kposehn 13y agoTrue, though it is highly profitable as well.