Hopefully, law enforcement will remain on track to catch people who are interested in carrying out such attacks and to prevent new ones from arriving from outside the country, in the case of foreign linked terrorism, because such attacks are nearly impossible to prevent once the terrorist is here.
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Closing out borders would have been so much easier, but of course, the White House and the Senate will have nothing to do with jeaporizing Mexican votes and the ONE AMERICA agenda....so just send them the clean-up bill for the next big "9/11" catastrophe....they just keep letting them in...anyone and anything.
As long as there are idiots who insist that tightening the borders and clamping down on illegal immigration from everywhere is somehow "racist" nothing will be done. PTBs are inherently lazy and addicted to the status quo--it will take a huge outcry, and I mean huge enough to make them fear for their jobs, to get them to move on this.