Security preparations for New Year's Eve in UK

The video covers New Year celebrations in Edinburgh, London, and New York, highlighting the security measures in place due to recent terror attacks. Edinburgh's Hogmanay features fireworks and a large crowd, with tight security. London also has increased security, with barriers and a large police presence. In New York, Times Square prepares for the ball drop with thorough security checks and a million attendees expected.

How do organizers in Edinburgh and London view the events despite the security concerns?

What was the impact of the terror attacks on the New Year celebrations in New York?