After Orlando, Senate bill seeks to allow FBI Web searches without court order
washingtonpost.com
washingtonpost.com
On the one hand, people who have been found to be a legitimate danger of terrorism by a reasonable process including due process of law arguably shouldn't be able to buy guns. Or fly on commercial airliners.
OTOH, I can also see a reasonable argument to be made that the various terrorist watch lists (including the no-fly list) do not meet the appropriate standard of due process for either or both of those consequences.
All of those things have been proposed this year or are already enacted.
Just looking at the recent past, the Democrats had both houses of Congress and the Presidency. They were fully capable of passing every single piece of legislation that they have historically wanted. However, all they passed were a couple of measures on which the electorate were hugely split. Then they chose to sit on the floor, because the Republicans didn't let them vote on a gun measure. The Republicans have also acted this way when in power.
These are politicians playing politics - 535 people who all believe they should be President. They are all willing to string the people along to further their political careers.