The Tohono land, which is the size of Connecticut and the third-largest reservation in area in the country, has long vexed law enforcement.

(For the record, nobody asked why the city's school custodians have helpers, a situation that has long vexed budget watchdogs.)

It has long vexed Birmingham antiquaries and is perhaps insoluble.

The dispersion of important African-American cultural materials has long vexed researchers.

Transport is an issue that has long vexed many in my constituency and the lack of investment in Yorkshire over the years is clearly evident.

He has long vexed transit officials, who posted his picture at stations and depots.

One of the major mysteries that have long vexed astrophysicists has to do with the origin of structure in the universe.

The fight is illustrative of two big questions that have long vexed Madison Avenue.

Airlines buy millions of dollars of spare parts each year, and the question of how to police their quality has long vexed the agency.