 A 2004 report by Democratic United States Representative George Miller alleged that in ten percent of Walmart's stores, nighttime employees were locked inside, holding them prisoner.There has been some concern that Walmart's policy of locking its nighttime employees in the building has been implicated in a longer response time to dealing with various employee emergencies, or weather conditions such as hurricanes in Florida.Walmart said this policy was to protect the workers and the store's contents in high-crime areas and acknowledges that some employees were inconvenienced in some instances for up to an hour as they had trouble locating a manager with the key.