I know what you mean but I think the opposite: It IS unsafe to have warrantless government searches on your phone.

Once people get used to that what's next? Since we have your phone open, just go and pop your Gmail credentials in there for us why don't you? Your phone was in your pocket so what else do you have in there? Keys, what do they open? etc...

It's a slippery slope and the reason we have checks and balances.