allan fisher, al jazeera, las vegas. >>> tune in to the news hour in about 35 minutes time. aljazeera.com for all of the headlines. aljazeera.com. ♪ >> this is a special edition of al jazeera america live from new york city. i'm del walters. >> i'm patricia sabga. more than 1,000 schools are closed after what officials say was an electronic bomb threat. >> the second largest that district has 700,000 students and more than 900 schools and 187 charter schools. >> directs superintendent ramÓn cortinez called the threat rare, and he said all campus also be searched until they are deemed safe. >> i think it is important that i take the precaution based on what has happened recently and what has happened in the past. i have asked the chief to be working with the city police department in the sheriff before the day is over. i want every school searched to make sure that it is safe for children and safe for staff to be there. >> let's go live now to al jazeera's rob reynolds in l.a. what do we know now at this hour about the nature of the threat? >> well, del, ramÓn catrinez, who w

allan fisher, al jazeera, las vegas. >>> tune in to the news hour in about 35 minutes time..com for all of the headlines. aljazeera.com. ♪ >> this is a special edition of al jazeera america live from new york city. i'm del walters. >> i'm patricia sabga. more than 1,000 schools are closed after what officials say was an electronic bomb threat. >> the second largest that district has 700,000 students and more than 900 schools and 187 charter schools.