Accusing the Right of giving encouragement to extremists is not “a muzzle to close down free speech”, Janet Albrechtsen (“Mad march of political correctness”, The Australian, 3/8). Nor is calling anti-immigration brigades racist, or mocking climate deniers. It’s simply more free speech. If you don’t like the criticism, go ahead and answer it, if you can. No-one’s stopping you – you’ve got your own column in The Australian.