But Welsh also acknowledged that the Air Force recorded a disturbing number of reports of sexual assault last year even as it worked to curb misconduct.

NPR: Hagel To Review Air Force Sexual Assault Case

More troubling, unemployment in the past two years would have been even higher but for a disturbing lack of growth in the labour force: that is, the number of people either working or searching for work.

ECONOMIST: Troubling trends behind the falling unemployment rate