Yet legislation that the Senate approved last month faces a troubling array of obstacles.
Since the mid-1970's -- a time when it was widely assumed that most infectious diseases had been conquered or at least controlled -- a troubling array of previously unknown diseases has emerged, including Lyme disease, AIDS, mad cow disease, the Ebola virus, Legionnaires' disease and a host of others.
Still, Jeter's first 100 at-bats produced, or added to, an array of troubling indications.
It is, instead, to acknowledge the range and depth of 13 remarkable and very different actresses, and also to convey, through the suggestive medium of pictures and words, an array of intriguing, troubling, inspiring and contradictory possibilities.
One troubling area was publishing.
While the Bush administration has been pushing hard for military action to neutralize Iraq before it gets nuclear weapons, Washington has been moving much more slowly to eliminate an even more troubling nuclear threat -- the vast array of bomb-grade materials that lie poorly protected around the world, waiting for some terrorist and rogue state to buy or steal them.
These revelations are troubling, but there is a broader array of threats to internet freedom around the world, and those threats are extensive and are growing, as documented in Freedom House's report Freedom on the Net 2013.
The result is a fairly bewildering array of possibilities, with potentially troubling inconsistencies.
To me, the most troubling question by now is not how Muslims, in whatever array of world-spanning variety, regard America.
It's troubling to see a writer whose first novel taxonomized a dazzling array of humankind portray her characters as homogenized drones.
"I would like to take a moment to recognise the fallen police officers in Dallas and Baton Rouge," said Priebus, who also called on the massed array of delegates to "recognise all the families who have lost loved ones in these troubling times".
