Things are heating up in the nation’s capital. While the heat index in Washington, DC, touched 106 degrees Fahrenheit (41 degrees Celsius) yesterday, the back-and-forth between the Department of Justice and Federal Trade Commission in the latter’s Qualcomm litigation is seeing some new sparks fly. The DOJ’s antitrust division filed a statement of interest earlier this week encouraging an appellate court to reverse a decision in the commission’s favour. Forecasts suggest temperatures will continue to rise this week. As for the licensing quarrel between the two US antitrust enforcers, a spokeswoman for the FTC said the agency had no immediate response to the DOJ's statement, but "stay tuned".