Supermodel withdraws kids from school over presence of cancer-causing chemicals

Cindy Crawford has withdrawn her children from school.

The 48-year-old supermodel and her husband Rande Gerber have decided not to allow Presley, 15, and Kaia, 12, to return to Malibu High School after routine soil tests found elevated levels of PCBs - chemicals which can cause cancer and damage immune and reproductive systems - in window caulking in four of 10 classrooms checked at random.