carried out in special education, supervising attorney at disability rights california, and jane meredith adams, reporter at the online education news site edsource. welcome to you both. >> thank you. >> jane, how significant is this u.s. department of education ruling decision against the oakland unified school district? >> the lawyers i interviewed said it was very significant. a lawyer at the national disability rights network, the national group in d.c. that oversees complaints in all 50 states, said it was ground-breaking. >> and what is prone restraint? define that, because it's legal in california. what is it and when is it supposed to be used? >> prone restraint is when you have two to three adults, sometimes more, holding down the child on the floor facedown. and it's only supposed to be used for emergency containment. but as we saw in stewart's case, it was being used much more often than that. >> and in fact, jane, you've done extensive reporting on this. and there are a number of schools that use it. how often is prone restraint used in california? >> in a series last year we did pu