ALAN BALDWIN SEVEN-TIMES Formula One world champion Lewis Hamilton expressed concern about human rights in Saudi Arabia and indicated he did not feel comfortable about having to race in the kingdom. Saudi Arabia is hosting a grand prix for the first time this weekend, a night race around a street circuit in Jeddah, with rights groups accusing the country of using the event to deflect scrutiny from abuses. Hamilton, the sport's most successful driver, said he had received a warm welcome on arrival but felt "duty-bound" to speak out. The Briton, who has used his platform to campaign for diversity…