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Security agencies often argue that walls can slow down illegal crossings, giving border patrol officers more time to respond. Even if walls do not completely stop migration, they may redirect movement toward official entry points where authorities can conduct inspections.
For politicians who support strict immigration policies, the wall also symbolizes the government’s commitment to protecting citizens and enforcing laws. This symbolic value can be politically powerful, particularly during election campaigns.
3. Political Accountability
Supporters also argue that governments have a responsibility to maintain secure borders. Many voters view border control as a fundamental aspect of national sovereignty. From this perspective, constructing a wall demonstrates that leaders are taking concrete action to address public concerns about immigration.