The red scare is standard fare, and despite the end of the Cold War it still hasn't gone away;
In 1924 the Daily Mail published a fraudulent letter from head of the Soviet Union Comintern, part of which said 'A settlement of relations between the two countries will assist in the revolutionising of the international and British proletariat not less than a successful rising in any of the working districts of England, as the establishment of close contact between the British and Russian proletariat, the exchange of delegations and workers, etc. will make it possible for us to extend and develop the propaganda of ideas of Leninism in England and the Colonies' https://en.wikipedia.org/wiki/Zinoviev_letter
Here is a recent article which begrudgingly says 'It’s not that Labour now has a communist programme. Revolutionary socialism is as dead as any idea can be' but this is what it does say; ' 'Even now Labour supporters do not recognise that their party had inherited the worst traditions of the far left' and 'what Leninists called 'revolutionary defeatism' that is Labour’s most striking characteristic'. It goes on with the following, in quotes as a reported statement although it is unattributed 'And 'they absolutely believe that if Brexit brings chaos the voters will turn to the radical left' '. https://www.theguardian.com/commentisfree/2018/dec/16/why-are-labour-party-leaders-so-quiet-on-europe---maybe-it-is-the-lure-of-disaster
For the record; The Labour leader, Jeremy Corbyn, who turned round and applauded Cooper in the chamber as the defeat was announced, said: 'This vote is an important step to prevent a no-deal Brexit. It shows that there is no majority in parliament, the cabinet or the country for crashing out of the EU without an agreement. That is why we are taking every opportunity possible in parliament to prevent no deal.' https://www.theguardian.com/politics/2019/jan/08/theresa-may-suffers-commons-defeat-over-no-deal-brexit
On scare tactics in general I haven't even scratched the surface;
The Daily Mail calls judges the enemies of the people - of course hiding its real intent by then saying it reporting concern by MPs https://www.dailymail.co.uk/news/article-3903436/Enemies-people-Fury-touch-judges-defied-17-4m-Brexit-voters-trigger-constitutional-crisis.html
The Sun asks if MPs can withstand the violence if Brexit is overturned - thinly disguised by referring to past riots https://www.thesun.co.uk/news/7911260/stealing-brexit-british-people-mps/
Scare tactics are also used in business and not just to cow the workforce to accept lower wages. When IBM were the big player in the IT market it was widely believed that they used FUD (Fear, Uncertainty and Doubt) as a sales tactic. Indeed this is where I first encountered the term. The sales team would undermine competitors products by implying rather than saying openly they were unproven, risky, or not future proof and insinuate that no one got sacked for buying IBM, so encouraging the customer to make the safe choice. Firms buying PCs running OS2 were ultimately caught out, although OS2 was more advanced than Windows at first, it ultimately failed in the market leaving some companies with obsolete estates of PC's.
Part 3 Consider - On Power - Ways of exerting power