Morning Walkabout - 5/1: Taxicabs, T.S.A. Complaints and More - NYTimes.com Hiroko Masuike/The New York TimesThe official "Boro Taxi" was unveiled outside City Hall on Sunday. Morning Walkabout A daily capsule of travel news curated by our writers and editors. And the New Cab Color in New York? Hailing a taxi while visiting New York City is a rite of passage. It seemed like it would get easier, with the announcement this week that the city's iconic yellow taxis would be joined by "apple green" licensed cabs to help serve the outer boroughs. But the licensed cab drivers find the color "repulsive." Maybe it's just easier to figure how to work a Metrocard and use the subway. Know Your Rights The Sikh Coalition and the Leadership Conference on Civil and Human Rights have unveiled FlyRights, an app that allows travelers to file complaints about racial and gender profiling to the T.S.A. on the spot. Hot Sale! Southwest is offering a sale on tickets to more than 70 destinations. Fares start at $60 each way. Smarter Travel Wait for Foreigners at Heathrow Is Up Long immigration lines at Heathrow airport have been especially time-consuming in recent months, and while the reasons for the longer lines are not clear, there is deep concern about the impact the wait times will have on Olympics-bound travelers. New York Dining 101 A restaurant guide for visitors features categories including "New Classics," "I'll Go Anywhere" and "Not Leaving Midtown." Serious Eats