MILAN Italy famously shuts down in August, and that may explain the sleepy response to a report last weekend that drug abuse in northern Italy has been significantly underestimated. But acknowledging that cocaine use has surged, Italian authorities said they were treating the findings as a wake-up call. Officials are so concerned with the rise in cocaine consumption that they plan to initiate a nationwide awareness campaign targeting young people this autumn. "We're looking closely at the issue, which is very preoccupying," Carlo Giovanardi, minister for relations with Parliament, said in a telephone interview. [continues 674 words]