celebrity colonialism
n.— «This Western security force is not a US or European army plundering Namibia’s natural resources or threatening to topple its government. It is the security entourage of one Brad Pitt and Angelina Jolie, the celebrity couple better known for living it up in LA than slumming it in Namibia. They reportedly wanted their first child to be born in Namibia because the country is “the cradle of human kind” and it would be a “special” experience…. And it seems that no security measure is too stringent in the name of making Ms Jolie feel special. Welcome to the new celebrity colonialism.» —“Brad, Angelina and the rise of ‘celebrity colonialism’” by Brendan O’Neill Spiked (London, England) May 30, 2006. (source: Double-Tongued Dictionary)
This is just a trick to get fame, they could have got security in US too.