Todd Bishop / GeekWire
As Amazon vacuums up iRobot, critics call on regulators to pull the plug on Big Tech deals – Amazons proposed acquisition of Roomba maker iRobot for $1.7 billion could push its annual spending on acquisitions to a new high, when combined with its purchase of MGM for $8.45 billion and its proposed deal to acquire primary care company One Medical for $3.9 billion. But will U.S. antitrust regulators …