BusinessDay... the voice of business: US Q4 growth unrevised at tepid 0.6 pct US Q4 growth unrevised at tepid 0.6 pct ================================================================================ Admin on 27 March, 2008 03:57:00 WASHINGTON (AFP) - The US economy grew at a tepid 0.6 percent annual pace in the fourth quarter of last year, the government said Thursday in a final unrevised reading.