A high school student in Northglenn is upset that campus security told him to remove the large American flags flying from his pickup truck because it might make others uncomfortable.Jeremy Stoppel told 7NEWS he got a ticket at Northglenn High School last Thursday for squealing his tires. He said he deserved that ticket and deserved having his parking lot pass suspended for two weeks.But he's upset that campus security then told him he can't fly his 3 feet by 5 feet flags in the bed of his pickup truck anymore."She said I should take my flags down. She said this is a school that focuses on diversity and she doesn't want anyone to feel uncomfortable," Stoppel said. "How do you suppose anyone would feel uncomfortable in America with an American flag? That's where I'm confused."He said he started flying his flags around school last week."Now that I finally get to drive to school, I have a truck, that's what I want to do. I want to fly my flags. September 11th is coming up so I wanted to fly them in honor of that," said Stoppel, who said his cousin is serving in the Navy.Stoppel and his father want an apology from that security supervisor."To me, she's just threatening him, hoping that she can just bully him so he'll just take 'em down and just put his tail between his legs and say, 'I'm done. Sorry. Sorry. Sorry.' And that's just not gonna happen," said Dan Stoppel, Jeremy's father.7NEWS checked and the school has no policy against flying the American flag. In fact, Northglenn High School has a U.S. flag on the flag pole in front of the school."I am unaware of that situation. So I need to talk to that person, see why they did that, if they did that," said Northglenn High School principal Dr. Mary Lindimore. "We have 'em in the hallways upstairs. So we promote flying of American flags."There is a policy that bans anything that creates a safety problem or which disrupts the educational environment.When 7NEWS asked Lindimore if she could imagine any scenario in which the American flag would disrupt the educational environment, Lindimore said no.Lindimore promised to talk to the security supervisor next week.