One line is for Israeli citizens of any ethnicity, and another for non-citizens of any ethnicity. Plenty of Israeli Arabs travel through West Bank daily on the very same buses this article claims are for "Jews only". For example, Israeli Arabs studding at Ariel University, travel on buses for citizens. One bus goes through border control, another doesn't. Race or ethnicity has nothing to do with it.
North Korea launches long-range rocket, testing banned missile technology, says south (AP)
from the article: New routes to racism