“In the course of almost 43 years in solitary confinement, Woodfox has only had one period, of about three years, among the general prison population. The rest of the time he has been alone, spending 23 hours a day in his cell and one hour, also in isolation, in a concrete exercise yard.” Albert Woodfox, the longest-standing solitary confinement prisoner in the US, just found out that his conviction has been overturned.