FILE - In this Tuesday, May 27, 2014 file photo, a drug dealer poses with cannabis products as he waits for customers in downtown Lisbon. The European Union agency that monitors drug use says it has detected a trend of escalating violence between gangs operating on the continent. The agency says in its annual report on the drugs market that European consumers increasingly have access to "a wide variety of high-purity and high-potency products." (AP Photo/Francisco Seco, File)
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