Late last year, Sp0n released a Vigilante mobile app that was supposed to warn you of nearby crimes and emergencies. Or rather, it tried to release the app -- Apple quickly pulled the title after worrying that the name and focus encouraged users to thrust themselves into dangerous situations. After a few months of retooling, however, it's back. The newly rebadged Citizen for Android and iOS will still warn you when someone nearby has reported an emergency to 911, but the emphasis this time is on safety. If there's a robbery in progress down the street, you're encouraged to avoid it. If you are caught up in an incident, however, you'll have tools at your disposal.