and that meant making bucklebury safe. police patrolled the streets on horseback. helicopters with heat-seeking technology flew overhead, and royal armed guards stood watch. while the security was immense outside the middleton home, inside it was just family. >> they were getting up at a night, they were changing all of the nappies. they were both exhausted, but elated, very excited. they were enjoying it. so they didn't have a whole entourage of staff. >> instead, grandmother carol middleton took on the role of royal nanny, and grandfather michael middleton became the royal photographer. >> it was really important for kate and william to have those first few days and weeks together on their own as a family. and that's why they didn't have a formal photographer coming in and taking formal photographs. >> their seclusion wouldn't last long.