Conduct desk research to obtain information about the U.S. construction sector. In your initial post, describe the need for the Construction Extension to the PMBoK. What is unique about the construction sector from the other sectors that use PMBoK? Ensure that you discuss the issues relating to quality, risk, health, safety, security, and the environment. You can add any additional information that you think helps you describe the sector better. Add all references and their citation to the initial post