A 90 day prohibition is a sensible precaution, and it is regrettable that that those protesting Trump's temporary ban on immigration from seven Muslim majority nations are so blinded by their hatred for the President that they fail to see that
Trump's Travel Ban and the Protests--A Reality Check
The protests against President Trump's executive order on immigration that are being organized and funded by left wing groups are disingenuous to say the least. There was no similar outcry when Obama barred all immigration from Iraq for six months in 2011. There has been no outrage about the killings and mistreatment of non-Muslims by Muslims. Nor have there been protests about the subjugation of women in all but a very few Muslim communities worldwide.
Trump's executive order is a temporary 90 day ban. It would have been better had he ordered the reinstitution of the Mantis program and required a Security Advisory Opinion on every visa applicant and asylum seeker from every Muslim nation and from several, like Nigeria, with sizable Muslim populations.