18:00Six O'Clock News02/05/2016 A breakthrough in treating breast cancerBBC Radio 4 Duration: 30 minutes Mon 2nd May 2016, 18:00 on BBC Radio 4 LWAvailable for over a yearListen nowScientists produce a near-perfect picture of the genetic events that cause the illness.GenresNewsFormatsBulletinsBrandSix O'Clock News Source: BBC Online