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Cosmic ray events above 10^19 eV have posed a fundamental problem for morethan thirty years. Recent measurements indicate that these events do not showthe features predicted by the GZK bound. The events may, in addition, displayangular correlations with point sources. If these observations are confirmedfor point sources further than 50 - 100 Mpc, then strong interactions for theneutrino are indicated. Recent work on extra spatial dimensions provides acontext for massive spin-2 exchanges capable of generating cross sections inthe 1 - 100 mb range, as indicated by data. Applications of extra-dimensionphysics are controversial, and we comment on several contentious issues.Comment: 4 pages, 1 figure; talk by JPR at 7th Conference on the Intersections  of Particle and Nuclear Physics, Quebec City, May, 200

The GZK bound and strong neutrino-nucleon interactions above 10[sup 19] eV: a progress report