Today’s update on weekly jobless claims doesn’t tell us much. New filings for unemployment benefits inched lower last week by 1,000 to a seasonally adjusted 428,000, but that’s effectively no change. As a result, there’s still plenty of mystery about what the crucial July 8 employment report for June will reveal. There was some hope that today’s jobless number would offer some perspective, but the veil of uncertainty remains tightly drawn.