Press photography was prohibited, an unexplained edict increasing the tension before the concert.
Sandra Bland's death is a reminder that routine encounters between police officers and black Americans have often times been fraught with tension, violence, and unexplained tragedy.
Protesters and police clashed in Baltimore amid growing tension over the unexplained death of Freddie Gray, who died after suffering a fatal spinal injury while in police custody on April 19.
In an attempt to calm tensions over the unexplained attack, Essex police said it was not known at this stage if the murder of Nahid Almanea was a hate crime.
And while the book does have its share of suspense (the paired mysteries of Laura's disappearance and the unexplained letters provide plenty of narrative tension), Chidgey's concerns go beyond the simple unraveling of plot convolutions.
It is still unexplained how far fatigue and transverse tension affect the distribution.
Similarly, the Knightmare special wasn't quite the same as anybody remembered – the original series didn't tend to finish each episode with a drawn-out, unexplained and completely uncomfortable moment of sexual tension between Treguard and Dobby off Peep Show, for example – but it still spoke to hundreds of thousands of people who grew up watching it.
There is currently debate as to the origins of a fourth pain category, idiopathic pain, which covers such medically unexplained disorders as fibromyalgia syndrome, irritable bowel syndrome and tension headache.
Tensions there have increased, as a series of unexplained bomb blasts have struck nearly a dozen locations since the end of last year, many of them against pro-Kiev organizations.
The military's human rights record has also created tension, with a State Department report released Thursday noting complaints over unexplained disappearances and other allegations of abuse at the hands of soldiers.
