Photo of Sienna Miller at London's Heathrow Airport

Sienna's Out of Africa, Back in London

Sienna Miller arrived back at Heathrow airport last night following a trip to the Congo, where she'd been blogging on behalf of the site Take Part. She'd been in the country for over a week, meeting with locals and documenting what she saw. It's a far cry from the vacations Sienna usually enjoys, but it's great to see she's jumping on the celebrity philanthropy bandwagon.

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