welcome back. i'm melissa harris-perry. july marked 25 years since the passage of the americans with disabilities act. the law was created to protect people from discrimination and employment. transportation, governmental activities and public accommodation like public schools. and yet this week a video of an 8-year-old, a student, being handcuffed as punishment is calling no question how the ada has upheld or not upheld for children in our schools. according to a federal lawsuit filed monday by the american civil liberties union, a school resource officer handcuffed two small children both with disabilities as a means of punishment in covington, kentucky. as part of its case against the kenton county sheriff's office, the aclu released a video of sumner handcuffing one of the children last year. now the video was recorded by a school staffer and later obtained by the aclu. we'll show you part of the video