So what was Grubb hiding when TV showed his laptop screen?

Denny Hamlin crew chief Darian Grubb wasn't too happy Sunday when ESPN attempted to show his laptop computer screen on TV near the end of Hamlin's victory at New Hampshire Motor Speedway. Hamlin was leading with four laps remaining in the 300-lap race when an ESPN cameraman climbed onto Grubb's pit box and showed an over-the-shoulder shot of Grubb in front of his computer. Grubb then put his hand over the camera lens, and he and another crewman covered Grubb's computer screen with their hands. The reaction led to fans asking on Twitter what Grubb and his team did not want fans and TV viewers to see on his computer screen. Was he attempting to hide some sort of secret data he didn't want the world to see? "Just tire pressures, fuel mileage, race strategy, and other misc stuff," Grubb wrote on his Twitter. Sporting News