Nadia Short, General Dynamics, joins board of National Cyber...

Nadia Short, General Dynamics, joins board of National Cyber Security Alliance … Kami Ragsdale, ex-AOL, becomes Invision chief financial officer … Michael Riley promoted at Disney to president of ABC Family … Dominic Fails, ex-Telemundo, hired by Journal Broadcast Group as vice president of sales … Alteva promotes David Cuthbert to CEO … Mark Hard, ex-Hewlett-Packard, won’t be nominated for re-election as News Corp. director … Level 3 Communications names Brian Bonacci, ex-TW Telecom, director of business development for federal markets group … Western Digital names Len Lauer, ex-Qualcomm and Bell Atlantic, to board.