LONDON (Reuters) - The Speaker of Britain s parliament said on Monday there must be zero tolerance of sexual harassment or bullying among lawmakers, their staff and anyone else within the parliamentary estate after media reports about alleged misconduct.  There must be zero tolerance of sexual harassment or bullying here at Westminster or elsewhere,  speaker John Bercow told parliament. Earlier, Theresa May s spokesman said the British prime minister was deeply concerned about the reports of sexual harassment by some lawmakers. 