So basically I want to apply to BAE systems etc and study aerospace engineering I know you need SC to get the job. The thing is though I have been a British citizen in the UK since birth since i was born in London and lived my whole life here. I also have an Iranian passport since my parents etc are all from there. Will I be refused security clearance for being dual national or no. Any person that used to be in my situation in the uk or have any info on this I will gratefully appreciate any help on this issue.