*New York college students who support Palestine fear post-9/11-style retaliation.* Except that now they also scan through social media posts.

The difference between condemning HAMAS's actions and hating Palestinians generally is conceptually clear enough, but if you forget to pay attention to it you can easily drift across the line without noticing. Likewise with the difference between Israel's actions and hating Jews generally.

Even if you carefully keep these differences in mind, and carefully represent them in your words, your enemies can unconsciously misunderstand and accuse you of hatred. They can even dishonestly and intentionally make false accusations, blaming you for what your associates have done, or for things that didn't happen at all.