I always notice these prints at Stansted airport on the way through to the plane. I think the juxtapositions are clever and simple. Also, in the travel context, they bare an even stronger and relevant message of different points of view depending on culture and perspective. They have built a strong work ethic that this campaign is based around;
"We at HSBC, the world's local bank, strongly believe in the potential of difference. In a world of increasing sameness, we believe it's important to value different points of view and there should be somewhere everyone can air these views and see the views of others."
The website hosts a discussion board where people debate about various topics and you can also see the whole range of their prints for this concept.