You've been watching too much FOXnews, again. Border crossings are actually lower, and captures of dangerous criminals crossing the border are up. FOX, as the official marketing arm of the Trump campaign, are doing their best to stir up fear among Americans, particularly white Americans.
As for terrorists, they don't need to cross the border on foot at night. They can fly into any country in a First Class seat. They have big money behind them, so they can purchase new identities, dress like millionaires, and travel first class. Meanwhile, the fear mongers have Americans focused on Mexicans crossing the border to work in farm fields, meat-packing plants and restaurant kitchens.
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