I believe it is Retina Display Narrow, by Tobias Frere-Jones, custom for the WSJ:
Retina can be licensed by contacting Frere-Jones Type.
Retina Display has no apparent ink traps. For Retina Micro, here are similar agates:
Amplitude (used right on here on this site!)
LFT Etica is also quite similar to Retina Display, at least in this string of text.