US President Donald Trump’s travel ban on 12 countries and partial restrictions on seven others to guard against so-called foreign terrorists is a “nonsensical” bid, observers have warned, adding it could have wide-ranging consequences in Southeast Asia, with the rule covering Myanmar and Laos.One concern raised is how the ban would close an escape valve from two of the poorest nations in the region, especially for Myanmar, which is torn by conflict, thereby worsening the violence and any...