"It's not racist to impose limits on immigration" - this is the message that the Tories have plastered up on billboards all over the country. Whatever the subtleties of it, the obvious intention here is to exacerbate and exploit the current climate of racism and xenophobia, as a lot of people have already commented here:

 https://www4.indymedia.org.uk/en/2005/03/306934.html

To complain to the advertising standards agency, follow this link:

 http://www.asa.org.uk/asa/how_to_complain/complaints_form/