Gold seemed to be stabilizing at the end of last week. Commodities remained weak. Steel has fallen 31% this year. Brent crude is off 17% since early February. And copper is down 15%. Copper is the metal you need to make almost anything - houses, cars, electronics. When it goes down, it generally means the world economy is getting soft. At the start of last week, the conventional analysis of the gold sell-off was that the central banks' efforts to revive global growth were working. The feds had the situation under control. So who needed gold? By the end of...