I was a bit baffle when I read this question because TB testing already occurs.
http://www.ukvisas.gov.uk/servlet/Front?pagena me=OpenMarket/Xcelerate/ShowPage&c=Page&cid=11 34650060907
Is AB Ed making this up or has she got the wrong end of the stick again? When I did a search, this non-story is from the Daily Mail. As it is against the AB Eds religion to supply a link, here it is
http://www.dailymail.co.uk/pages/live/articles /news/news.html?in_article_id=470439&in_page_i d=1770
The report is extremely badly written so I cannot blame the AB Ed for believing it. I think the testing refererred to in the question is for tourists coming to this country although the Daily Mail piece rather confusing goes on about Immigrants.
If you are able to extract the facts out of the Daily Mail's xenophobia, then it seems reasonable to test tourists for a disease that is prevalent in their country of embarkation.
I only think that is what the question and the DM piece is about, can anyone else make any sense out of it?