Discover how statistical ideas inform the design and implementation of biometric security systems, and how estimates of dangerous space debris are produced – all in the June 2021 issue of Significance, out now.

Also in this issue, Joseph L. Gastwirth and Qing Shi use three decades of data from a triennial survey of consumer finances to explore the changing face of wealth inequality in the USA, while Sheila Bird offers a personal account of the debate over rapid coronavirus screening in secondary schools in England.

Plus:

• Sticker packs and albums are part and parcel of the football fan experience. But Dr Tim Paulden and friends found some stickers harder to find than others.
• Ron S. Kenett and Shirley Y. Coleman outline the roles played by data and statistics in “Industry 4.0”.
• Christoph Kurz explores differential privacy, what it is and how it works.
• Amanda L. Golbeck shares stories from the lives of two notable statisticians, Elizabeth L. Scott and F. N. David.

Members of SSA have free access  to the online version of Significance. If you are a member of SSA click here to find out how to get access. Once you have established your log-in details, you will also be able to access the magazine with Significance's iOS and Android apps.

Print issues will be mailed to subscribers soon. Significance is online at www.significancemagazine.com.