Blue Peter stretch of track which, on 3 July 1938, saw the world speed record for steam locomotives of set by LNER A4 Locomotive no. 4468 "Mallard". In October 1998, Richard Bacon was sacked, following reports in "News of the World" that he had taken cocaine. This incident followed shortly after the show's 40th anniversary, when previous presenters returned for a special programme. Those returning included Leila Williams, Valerie Singleton, John Noakes, Peter Purves, Diane Louise Jordan, Anthea Turner, John Leslie, Tim Vincent, Yvette Fielding, Caron Keating, Mark Curry, Janet Ellis, Peter Duncan, Sarah Greene, Tina Heath, Simon Groome and Christopher Wenner.
Prenatal cocaine exposure 17–27% of cocaine-using pregnant women deliver prematurely. In association with prematurity, growth in the womb is reduced, and low birth weight is connected to PCE. There are also data showing that spontaneous abortion is associated with cocaine use. Cocaine reduces the appetite and has been linked with reduced maternal weight gain during pregnancy; in addition, constriction of the blood vessels may further limit supply of nutrients to the fetus. Using cocaine while pregnant also heightens the chances of maternal and fetal vitamin deficiencies, respiratory distress syndrome for the baby, and infarction of the bowels. Early reports found that cocaine-exposed babies