Gold headed for a fourth weekly gain on expectations the Federal Reserve is poised to lower US interest rates, with prices aided by inflows into bullion-backed exchange traded funds. The precious metal traded up about 1.7% this week, after setting a record in Tuesday's session. The latest data on Friday showed consumer sentiment fell in September to the lowest since May and long-term inflation expectations rose for the second straight month. Merk Investments President and Chief Investment Officer Axel Merk ...