https://arstechnica.com/tech-policy/2020/02/feds-launch-a-probe-into-big-techs-smallest-acquisitions/

The Federal Trade Commission this week announced another set of probes to add onto the heaping mound of antitrust investigations the nation's biggest tech firms now face. This time around, they're digging into a decade's worth of acquisitions that were small enough to escape scrutiny the first time around but may have proven to have big consequences after the fact.