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Elon Musk under investigation by US agency for $44bn takeover of Twitter
(www.theguardian.com)
This is a most excellent place for technology news and articles.
having just gone through a procurement cycle for a $30k/year purchase at work can't imagine how much work multi-billion dollar purchases must be (if you take them seriously).
Depending on the situation you could possibly be sued for considering other competitors late in the cycle, let alone after signing and then trying not to pay.