'Is this the end of Schengen?'

INTERNATIONAL PAPERS - Tues. 05.01.16: Saudi and Iranian papers trade insults over rising tensions between the two regional blocs. Meanwhile, Sweden and Denmark tighten their borders to stem the flow of migrants, sparking fears about the future of the border-free Schengen zone. Stateside, President Obama unveils a series of executive actions aimed at reducing gun violence and here in France, an iconic Parisian canal gets a much-needed clean-up.