Take a look at the Establishmedia handling of Sean Smith’s mom and this Mooselip. One was lied to by Hillary and the other makes unfounded charges against Trump and the feigned outrage machine cranks up. The same old PC pablum.
Dickerson tries to make the Khan/Trump dustup a function of Trump's initiative to criticize Khan; and press silence on Mrs. Smith a function of honorable discretion on the part of Hillary.
But the difference, the reason Trump talks about Khan, and the reason that Hillary does not talk about Mrs. Smith, is the same reason - the press asked Trump about Khan, and the press did not ask Hillary about Mrs. Smith.
The press is the DEM party offense machine, so Hillary can take the high road (or claim to). Transparent as can be. Unrepentant liars, dishonorable people.