But the Barry family isn't flying again until they're confident their kids -- both of whom have Type 1 diabetes -- will have pumps that work beyond the checkpoint.
Rescuers have taken in lights and pumps and are trying to work out how much water is there and whether it is getting deeper in the mine, which is near the River Tawe.
When key workers fall ill or get afraid and low paid workers simply do not turn up for work food stores will have empty shelves, close and be looted, gas pumps will be dry and prescription drugs not delivered.
When these medicines don't work, there are local anesthetics, and drugs delivered directly into the spine by pumps such as those made by Medtronic (nyse: MDT - news - people ).