Heathrow braces for protests by climate campaigners and locals

Activists will march on airport on Saturday in protest over third runway, with some planning action that could delay flightsHeathrow airport is braced for protests and disruption on Saturday as climate campaigners join locals in a march on the airport, with one group planning direct action that could delay or cancel flights.
The airport said it was monitoring the situation closely. Operations at Heathrow were halted last July when a group of 13 protesters chained themselves together on a runway,