A new report confirmed five airstrikes that killed between 35 and 44 people in 2015.
It's more likely that cold weather froze a vital component of the aircraft.
A drone strike on a wedding convoy killed 12, but the U.S. refuses to acknowledge civilian deaths
Labor unions accused the government of trying to take the labor market back to "medieval times" and of implementing policies that are causing a "humanitarian crisis"
Organizers said strikes would take place is around 150 cities