According to its website, G4S specialises in particular in what it terms "executive style life-support in hazardous environments".
Driverless cars, if they prove to be safe, may well accustom people to relying on computers in hazardous environments.
Nicaraguan law allows children to start working at 14, among the youngest in the region, but not in hazardous environments like sugar cane, mines or quarries.
Chinese companies have proven willing to take on projects in hazardous environments often shunned by Western investors, particularly in potentially contentious industries like drilling and mining.
After the men first met in Syria in April, Yukawa asked Goto, who has been reporting from conflict zones since 1996, to take him to Iraq and teach him how to survive in hazardous environments.
(In India, children under 14 are permitted to work, but not in hazardous environments. An amendment to India's child labor laws, proposed in August, would ban children under 14 from working anywhere).
He added, though, that in a global organization, "ready access to staff is critically important, not just to ensure the success of the various missions and projects, but also for accountability purposes as our staff members travel to remote, austere and potentially hazardous environments".
Hemma Philamore, a PhD student at the laboratory, added: "We anticipate that the Row-bot will be used in environmental clean-up operations of contaminants, such as oil spills and harmful algal bloom, and in long-term autonomous environmental monitoring of hazardous environments, for example those hit by natural and man-made disasters".
Poor communication links and hazardous environments make the WSNs unreliable.
The research could also help robots improve how they find their way around hazardous environments.
A proportion of these activities are within radiological and respiratory hazardous environments.
