CNN — Pro-Palestinian protesters are resorting to ever-louder and intrusive tactics – like shutting down the Golden Gate Bridge during Monday’s morning commute and blocking access to Chicago’s O’Hare airport – as they try to shake US support for Israel and draw attention to the humanitarian disaster in Gaza. The disruptions are raising questions about the limits of free speech and led a US senator to encourage people to “take matters in their own hands.” An activist in Bakersfield, California, blew through limits on free speech when, during a public comment period on a resolution calling for a ceasefire in...