LATEST: British pop star George Michael may be barred from entering the US, after he received a police caution for possessing marijuana on Wednesday (29MAR06). The FAITH singer, who has a home in America, was taken into custody last month (FEB06) after London police allegedly found cannabis and another drug in his car. An immigration spokesman says, "This caution could certainly cause problems, but it has to be stressed that this sort of thing is dealt with on a case by case basis. "We can't say one way or another without reviewing all the details of the charges. But drug convictions can make things difficult for foreign visitors."