The threat, which was against “many schools,” was received electronically and mentioned backpacks and other packages, Cortines said at a morning news conference. The nature of the threat was “unspecified.
“http://ktla.com/2015/12/15/lausd-has-received-credible-terror-threat-district-official-says/
Gee, like backpacks.
And pencil case ‘clocks’ too maybe?