Wall or Welcome Mat?

If you were the president or leader of your country, would you want to make your borders to act as walls or as welcome mats?  In the United States, the media suggests that the liberal left rolls out the welcome mat at the Mexico border, and the conservative right “builds the wall.” President Donald Trump reinforces that polarization: on his first day in office, he signed executive orders to declare a national emergency at the southern border, suspend admission of refugees, conduct mass...