Robot guards may patrol future frontiers

If scientist have their ways, then robot border guards would be patrolling the frontiers in the near future.Amid the ever-present angst over illegal immigration, cross-border terrorism and contraband smuggling,some nations are turning to novel broder-surveillance technologies, potentially backed up by robots.
According to a in New scientist, the idea is to scatter arrays of sensors in a border area in ways that give guards or robots plenty of time respond before their targets make good an escape.
The need to secure borders in evident across the globe, from India, which is constructing a 3.400Km, 3 meter- high barbed wire and concrete border wall to close itself off from Bangladesh, to Libya, where foot patrols are being augmented with new people sensing technologies.
liya has an agreement with the European Union to try to limit the flow of immigrants from sub-Saharan Africa traversing its borders before crossing the Mediterranean and entering Italy.
To help it enforce this deal,Libya is spending 300mn euros on technology for it calls a "large border security and control system",made by Selex Sistemi integrate,part of Italian aerospace firm finmeccania.