NASA: Arsenic-life saga isn't done

Nineteen months ago, NASA's experts on astrobiology hailed the initial report about arsenic-eating microbes as a "huge deal," but with the publication of two peer-reviewed papers that have refuted that report, the space agency now says the picture is "as yet incomplete."
The stat …

By Alan BoyleNineteen months ago, NASA's experts on astrobiology hailed the initial report about arsenic-eating microbes as a "huge deal," but with the publication of two peer-reviewed papers that have refuted that report, the space agency now says the picture is "as yet incomplete."The statement from Michael H. New, astrobiology discipline scientist at NASA Headquarters' Planetary Science Division, runs counter to the instant reaction that the "arsenic-life" controversy is finished. Since Sunday's online release of the two papers by the journal Science, a lot of folks have been talking about FAILs and nails (as in last nails in the coffin).
New took a different tack:

"NASA supports robust and continuous peer review of any scientific finding, especially discoveries with wide-ranging implications. It was expected that the 2010 Wolfe-Simon et al. Science paper would not be exempt from such standard scientific practices, and in fact, was anticipated to generate significant scientific attention given the surprising results ...