Amazing, mind-boggling, incomprehensible, indefensible. The decision by the Federal Government to abolish the mandatory long-form of the census may be the worst policy decision of the past decade in Canada. The impact of this decision, if it is not reversed, will be felt for many years to come and, if it remains in effect over other census cycles or if it is a harbinger of things to come, could...

Dujmović et al. [J. ACM '20] proved that every planar graph is isomorphic to a subgraph of the strong product bounded treewidth and path. Analogous results were obtained for graphs Euler genus or apex-minor-free graphs. These tools have been used solve longstanding problems on queue layouts, non-repetitive colouring, p-centered adjacency labelling. This paper proves analogous structure theorems...