Di dau ma khong nhin...?

Hom nay, moi doc duoc tin la hai chiec truc thang (news helicopters) cua dai truyen hinh Channel 5 News da co tai nan xay ra dang khi chieu report cua cuoc car chase. Ca 6 nguoi phong su vien da chet. Khi Bo cua minh nghe vay thi thot len "6 gia dinh gap chuyen buon." Minh khong hieu vi sao ma nhung nguoi phi cong (pilots?) khong de y hoac bi truc trac gi ma ho khong the dieu khien cai helicopter. Dau phai la thieu airspace ma phai bay gan nhau den noi de collide va explode? Bay gio thi gia dinh cua ho phai lam sao? Nhu the nao moi la hy sinh vi cong viec lam? Tai sao lai co tinh trang nhu vay o tren dat nay? Khong hieu duoc chut nao...