Some trade shows find to go big, they need to go public
Video game, toy industry groups open satellite events for the public at their conferences to help exhibitors generate buzz from fans
Read MoreSecurity growing concern for many trade show organizers
Random bag checks, increasing presence of visible law enforcement among the changes some events have made recently for safety
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Hot trends in trade shows, from security to sponsorships
Also: How some groups take on outboarders and suitcasers, while others go public
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