.=.ñóóó■■■■■■■ - hey, i'm valerie june. coming up onreel south...erica's complicated history is brought to life in photographs. one southern photographer captured seminal moments. - [bk] thesere thcontact eets. th is mart lutheking's body n anbeing fln to lanta toe buri. the are thfolks ouide the lorine mol, where was killed. - aleriemomes at forcehim wi the min and an ea. - [bur s you'rlucky, tt tranates to e hear and th all thafiltersout th.

:■ñ - hey, i'm valerie june. ming up onreel south. - it's clear that therare hundreds of slave cemeteries our counties. - [valeriescattered across virginia, historic african american grave sites have been long forgott. - [crystal] i think it's important to know where you come from, good or bad, but i don't know it's a priority for a lot of people. kind of one of these things, either you care about it or you don't. - [valerie] uncovering these cemeteries allows us to discover more than the past, an important step towards american reconciliation. witnessunmarked, up next onreel south.

. ♪ xmxm0m0m0m0m0m0d0d0m6m6m6m6m@ - hey i'm valerie june.g up reel south . - [henrietta] the southern way of life was something sacred. do not question. do not doubt. close your mind, and believe what you're supposed to believe. - [valerie] in 1940, a young woman left sweet home alabama for the porta vida of costa rica. - [henrietta] i would be out there experiencing all kis of wonderful new things. anybody range, anody different. - [verie] in a te of romance and revotion. one woman on a quest for adventure finds herself in a true awakening.

comes after a report compiled in june revealed the pentagon could not explain 143 incidents of ufo sightings and that 18 of them appeared to have advanced technology. valerieo the pentagon's plans. >> reporter: the unexplained and unidentified -- >> look at that thing. >> reporter: has intrigued the public and presidents alike, including president obama on the late, late show with james corden. >> the truth is that when i came into office, i asked, right? i was like, all right, is there the lab somewhere where we're keeping the alien specimens in spaceships >> reporter: joking aside, the pentagon has now formed an agency to investigate who and what else might be out there through the airborne object identification and management synchronization group. the dod says its mission, to detect, identify and attribute objects of interests in special air use airspace calls for more investigations into mysterious objects captured by military planes grew after a government report released in june said 143 out of 144 objects in the sky couldn't be explained. >> it's extremely disturbing to think after spending hundreds of billions of dollars for so many years and beli