Which structure currently operates as a "virtual fence:"  Boarder Wall or Mexico-United States Barrier?
Day Without Immigrants 2017 Day Without Immigrants (or A Day Without Immigrants) was a protest and boycott that took place on February 16, 2017, to demonstrate the importance of immigration, and to protest President Donald Trump's plans to build a border wall and to potentially deport millions of illegal immigrants. The strike called for immigrants not to go to work, to avoid spending money, and keep children home from school. People took part to show the importance of immigrants to the economy and also to protest possible racial profiling of U.S. citizens by immigration enforcement. The strike was planned on social media. People first started talking about the strike after the Women's March, and as the idea gained momentum, important people in the restaurant industry helped boost exposure.
Fortifications of the inner German border The fortifications of the inner German border comprised a complex system of interlocking fortifications and security zones 1381 km long and several kilometres deep, running from the Baltic Sea to Czechoslovakia. The outer fences and walls were the most familiar and visible aspect of the system for Western visitors to the border zone, but they were merely the final obstacle for a would-be escapee from East Germany. The complexity of the border system increased steadily until it reached its full extent in the early 1980s. The following description and the accompanying diagram describe the border as it was around 1980.