This article was published by BBC. BBC is a very reliable source and is one of the main news outlets not only in the US, but for the whole world. The BBC operates at the minimum level of a college sophomore and at most much higher.
The purpose of this article is to show Theresa May's opinion and reaction over Trump's decision of separating children from their parents over the US-Mexico Border and her decisions after this problem.
Is this article by BBC really biased? I think the answer is no. This article gives both perspectives from each side of the issue. It talks about Theresa May's reaction by providing various quotes of her and it also gives two sources from Trump's perspective by giving a quote from him and also a quote from the US Attorney General Jeff Sessions. All 3 of these sources provide their claims, which gives the audiences an unbiased article.
The title of this article is "US child detention pictures disturbing - Theresa May". There are quotes that back this opinion up. BBC's title is the quote itself because Theresa May does describe the pictures "disturbing" and "wrong". She also adds on by expressing she totally disagrees with the US Decision and describes this whole situation with words such as "clearly, wholly and unequivocally" These quotes show that the article indeed has a shocking headline and does give the evidence to back it up.
None of the other stories that I saw on BBC look hard to believe. One example is an article that talks about Migrant children: Trump speak of the plan to halt separations. This article is a recent news article and they have quotes to back it up. BBC, as an organization, mostly focuses on new inventions, technology and politics, they do not tend to go into gossip or any controversial types of topics.
Yes, I can verify that this story is credible and true because many other credible news sources and organizations like CNN and New York Times have touched on this child detention and Mexico-US border topic. The title of the CNN Article is "Immigration in the US: Whats happening at the border." Just like BBC, CNN also gives various quotes from different sources such as Theresa May and Donald Trump, which makes them reliable. To conclude, This BBC article is a very reliable and unbiased source.