 Complete the following phrase:  NERVs are based at Cisco headquarters sites in San Jose, California and at Research Triangle Park, North Carolina, allowing strategic deployment in North America. They can become fully operational within 15 minutes of arrival. High-capacity diesel fuel-tanks allow the largest vehicles to run for up to 72 hours continuously. The NERV has been deployed to incidents such as the October 2007 California wildfires; hurricanes Gustav, Ike and 