GBP/USD snaps a three-day winning streak, holds above 1.3450 after US PCE data.Core PCE rises 0.3% MoM, 2.9% YoY, the highest since February.Headline PCE up 0.2% MoM, annual rate steady at 2.6%. The British Pound (GBP) trades under pressure against the US Dollar (USD) on Friday, snapping a three-day