BBC News Published image captionDavid Myerscough said his shirt was wet through with sweat from the intense pressure A radio operator felt "overwhelmed" and "sick" when he was given a key control room role after the Manchester Arena bombing for which he had no experience or training, an inquiry heard. David Myerscough, a civilian staff member at Greater Manchester Police (GMP), said it was the "worst night" of his professional life. It was "horrendous" dealing with calls from senior officers, he said. He said he was "wet through with sweat" from the intense pressure. Twenty-two people were...