Google’s chief executive, Sundar Pichai has told a US congressional panel why an image of President Donald Trump comes up on a google image search for “idiot”. Zoe Lofgren, a Democratic congresswoman, had asked Pichai to explain what leads to such. “How would that happen? How does search work so that that would occur?” she asked. But Pichai said Google has a search algorithm that collates data from billions of web pages. “Any time you type in a key word, we, as Google, have gone out and crawled and stored copies of… billions of [web] pages in our index and we take the key word and match it against the pages and rank them based on our 200 signals, things like relevance, freshness, popularity, how other people are using it,” he said. “Based on that, at any given time, we try to rank and find the best results for that query and then we evaluate them with external radars… to objective guidelines.” Lofgren asked further: “So it’s not some little man sitting behind the curt...