Lots of apps alert travelers to danger. Two of the newest come from the French and Israeli governments. These seem like good additions to the phones of ex-pats or travelers, and travel risk management experts say any info is usually better than none. Obviously partial to their products, TRM providers said one concern is that using both public and private-sector apps may be confusing during critical moments....

David Jonas in 2006 co-founded business media firm ProMedia.travel after ten years as a journalist with Business Travel News. David rejoined BTN in 2010 as executive editor when its parent company acquired ProMedia, and in 2014 co-created The Company Dime. David has a bachelor's degree in communications from Cornell University.