We need to carefully sift true information from false.
Tips
usage
Formal vocabulary for careful selection: 甄选 (to screen and select), 甄别 (to distinguish, vet), 甄拔 (to select and promote talent). Also a common surname, read the same.
Right pottery radical, the indexing component. The original sense was the spinning wheel a potter uses to shape clay; from 'shaping and forming' came 'to mold, to assess, to select'. Same pottery family as 瓶.
phonetic
垔yīn
to block up (phonetic element)
Left element supplies the sound — its old reading drifting to zhēn. It contributes no meaning here; the same phonetic appears in 鄄 and other related characters.