You may remember the mid-air collision in Brazil of a Gol 737 and an ExcelAire business jet.  William Langewiesche (a really excellent writer) has a somewhat controversial piece in this month’s Vanity Fair (read it here) about the crash.

Over on Cranky’s blog, a pilot friend of his has written a long, detailed and really interesting look at what happened.  If you’re at all interested in how aviation accidents happen, it’s worth the read.