1.   But on the verge is a perilous perch for the Jets, a place from which they get expelled year in and year out.

2.   Capitol police officers chatted affably with the protesters and had to use their authority only to shoo jaywalkers back to safety or chase picture-takers off perilous perches.

3.   Relocated inland this summer from its perilous perch overlooking the Atlantic, the historic beacon has survived Dennis, the National Park Service said.

4.   These are among the perilous perches illegal immigrants use when stealing passage north aboard freight trains.