Envelopes filled with broken glass, petrol through the letterbox and anonymous, threatening phone calls. These are just some of the ways councillors in Medway say they have been targeted while serving the public. Several of them – representing both sides of the political divide – said they had received verbal abuse and rude gestures while out campaigning, while some had experienced more serious threats while in the comfort of their own homes. The Local Government Association (LGA) is asking Westminster to consider making it easier for councillors to retract personal information such as telepho…