third rail

US /ˌθɜːrd ˈreɪl/
UK /ˌθɜːrd ˈreɪl/
"third rail" picture
1.

rel ketiga, isu sensitif

a political issue that is so controversial that any politician who dares to broach the topic will suffer a backlash from voters

:
Healthcare reform has become a third rail issue in American politics.
Pembaharuan penjagaan kesihatan telah menjadi isu rel ketiga dalam politik Amerika.
No politician wants to touch the third rail of social security.
Tiada ahli politik yang mahu menyentuh rel ketiga keselamatan sosial.