There are cards on the market to support most applications. The main issue is to identify what functionality you wish the card to address and create a matrix of all the issues, actions and environments you want the card to function or work within. Remember, it's easier to take a little more time in developing a needs assessment that addresses your requirements than to go back to management and ask for more money to fix an issue that wasn't researched properly. With the market saturated with one-card and multi-functional solutions, there is no reason for anyone to carry multiple cards.
Robert F. Lang is the director of homeland security at Georgia Tech University. Mr. Lang's more than 30 years in security have taken him from the FBI to the Lockheed Corporation, where he was the plant protection manager prior to joining Georgia Tech.