Cisco zooms in on enterprise videoFresh on the heels of its acquisition of video infrastructure vendor Scientific-Atlanta, Cisco is making big bets on video for enterprises. Click here for more.New Orleans' crime-fighting Wi-Fi network is now the city\u2019s lifelineWhen Hurricane Katrina hit New Orleans, the only communication system that hadn't broken down was the wireless mesh network deployed in the downtown area to support surveillance cameras. As the lone public communications system left in the city, it also now carries VoIP traffic that is the lifeline for many city businesses. Click here for more.Be sure to check out this week\u2019s Weekend Edition on our home page - with the cartoon; the Good, the Bad and the Ugly; the top five most-read reviews so far this year; and ID-10T, featuring this week\u2019s real-life story from the help desk of user foibles.Cool Tools Video: Logitech Wireless Headphones for PCWith a little help from colleagues, Keith tests the range of Logitech's Wireless (Bluetooth) Headphones for PC. How far will they reach in an office environment? Why is one of the \u201ctesters\u201d wearing a lab coat backwards? What\u2019s the bonus footage at the end? Watch it now to find out.NCAA live video feed could slow corporate networksBefore you point your Web browser at work to a live video feed from a March Madness NCAA tournament basketball game, think again. Click here for more.Coalition recommends new tools to battle phishingISPs and e-commerce sites can employ more tools to combat phishing scams, including "white lists" of legitimate Web sites and using false identification information to scam the scammers, according to a report released Thursday. Click here for more.VeriSign warns of massive denial-of-service attacksA sudden increase in a particularly dangerous type of distributed denial-of-service (DDoS) attack could portend big trouble for companies, according to VeriSign. Click here for more.For news updated throughout the day, go to Network World's NetFlash news page.