Security Heightens News Today

Cyberattacks, as well. heres the story. >> reporter: as fans gear up for this years super bowl, security heightens and will be the tightest in history. in an exclusive interview, abcs pierre thomas spoke to the department of homeland securitys jeh johnson inside the stadium about new tactics officials are prepared for. >> lone wolf style attacks, more smaller scale attacks. >> our challenges in homeland security are evolving. we have more concerns about domestic-based acts of violence. >> report...