The project, called "See Something, Say Something Online Act", is proposed to be extended to "providers of interactive services." This definition includes social networks, media with any readers profiles and comments, app stores, podcast showcases, fintech sites, mailing lists, and almost any IT product that you can find. Companies operating such services will be required to report suspicious activity of their audience and registered users.

No, not criminal activity, but any suspicious activity, this allows go around the laws restricting monitoring your emails and traffic.

If the management of the business does not provide such an opportunity for government, it will face the loss of immunity from prosecution for the actions of third parties. It is provided by Section 230 of the Communication Decency Act. It relieves the top management of online service providers from responsibility for user-generated content. That is why the directors of the conditional social network are not "pulled" for publications and comments that are exchanged by its members, even if the US court finds them criminal or violating any requirements of the law.

Suspicion can be cause by personal messages, posts, tags, transactions, comments and other UGC content, or information that government agencies and the court may associate with anything they don't like today, or are considered incitement to violence, prohibited activities, propaganda of wrong ideology or crimes in lot of fields...

These regulations will take into account potential violations both within the United States and abroad, hence will allow to legally track any internet user.