that was matt grudnoff from the australia institute think tank speaking to me earlier. despite the company earning $117 million in the first quarter. the recovery in travel, and a trend of more people working remotely. 3am on the central line, and this team is cleaning a mix of human hair, skin and metal that comes from the brakes and the tracks. it's everywhere. they use magnetic ones to lift the waste into bags and take away tonnes every night. it's hard, hot work. tonnes every night. it's hard, hot work-— hot work. these teams work throu . h hot work. these teams work through the night, _ hot work. these teams work through the night, they - hot work. these teams work through the night, they are l through the night, they are trying to clean up all of this debris, so it doesn't create tube dust, which people breathe in. this section of track was cleared just a month ago, two teams managed to cover 40% of the network a year. teams managed to cover 4096 of the network a year.— the network a year. dust has alwa s the network a year. dust has always been _ the network a ye