This is good and Trump is smart by showing Israel does it successfully and this will make the liberals squirm while the worm turns, as they won’t be able to call this idea racist since Israel is our ally, or will they????>>?
Israel has the huge advantage of more or less knowing who the enemy is.
In America it is far more complex BUT doable.
Trump should be saying we will profile “suspect elements” most of whom, maybe are Muslim. Look at what other Democracies do, (France for example) they do worse stuff.
The time is here to begin this process.