Ken McGregor, Adelaide Advertiser, August 16, 2010 Nurses and midwives have voted to take industrial action against the Government's "unsafe" proposals and have refused to rule out future strikes. Last night, the union voted to turn off a "tampered" computer-operated rostering system, which they claim has left them vulnerable to staffing shortages. "We have serious concerns that they (government administrators) have changed the computer system," South Australian Union secretary Elizabeth Dabars said yesterday. ... Nurses