The seeming standoff comes as CNN has been under more scrutiny in the past year. While CNN remains a go-to venue when big breaking news takes place, the network has found keeping viewers riveted to its screen a tougher task as competing news outlets have staked out new turf. Fox News Channel regularly wins more viewers than CNN. MSNBC provides competition as well. In the past year, new entrants have tested the waters. Al Jazeera America, while not generating big viewership, has bountiful cash reserves and a hard-news focus. Fusion, a new network backed by ABC and Univision, is experimenting...