Syria Gassing Came 'From Inside Syria'

Russia says that chemical gas that killed and injured dozens of civilians in a rebel-held town in northern Syria came from rebel weapons on the ground. Its defence ministry acknowledged that Syrian planes had attacked the town of Khan Sheikhoun in Idlib province.

The deadline has passed contractors to submit their tenders to build the wall that Donald Trump wants to construct between the US and Mexico. The barrier was a key campaign pledge from President Trump. So how easy will it be to build?