Shane Bauer and Josh Fattal are still being held in Iran. It's about 21 months now they've been held. Their lawyer got word of them going on a 17-day hunger strike. He has merely 'heard of' it because he hasn't been permitted to meet with them for a trial on charges that don't even really matter anymore because the trial has been postponed and cancelled and delayed several times now for seemingly no good reason, including any trial dates we may have mentioned here in the past. This would be at least the fourth one; the third hiker, Sarah Shourd (who has since been released), told of three separate occasions that they had all gone on hunger strikes during her time of detention.
In solidarity, friends and family of Shane and Josh have begun what they're calling a 'rolling' hunger strike- that is, one or more of them hunger-strikes for at least a day, then they hand off to someone else. They've said that will go on until Shane and Josh are released.
Meanwhile, Muhummad Ali has joined in the effort. No word on whether he'll be joining in the rolling hunger strike, but he's lent his support.
If you're so inclined to join in, they'd undoubtedly appreciate it. Be sure to make it known you're doing it, though; otherwise it doesn't really do much good.