chancellor dennis wallcot opened the meeting with a dramatic statement. >> first, i want to start out by apologizing to all of you. >> and he followed the apology with disturbing news. >> we decided to do envierntal reviews. your school came with a result that we were not satisfied with with an elevated level of tce. >> tce or trichlorethelyne is a carcinogen that can cause cancer and even death. tests at ps-51 showed tce levels at over a h hundred times worsen what's considered safe. >> we thought we needed to shut the building down. >> parents are upset. >> you are using euphemisms. you're trying to be nice. that was a building that was storing chemicals that were cancer-causing agents. and because of the vicinity and the children that are involved, you didn't care. >> you guys, board of ed, first allowed it to be used as a school for our children. and i think it's so inappropriate. >> but the parents were even more upset by the fact that the board of education discovered the contamination in january, 2011. yet, parents weren't told. and their children were kept in class through the