The death toll in Indonesia's Mount Merapi eruptions risen to 191 on Wednesday as international airlines again cancel and postpone routes to and from the region.
Like most other aviation calamities, the 583 people killed in 1977 when a KLM 747 struck a Pan Am 747 at Tenerife resulted not from a single error or failure, but from a chain of improbable errors and failures, together with a ...