  This letter briefly introduces the concepts of Dicke superradiance (SR) and
superfluorescence (SF), their difference to amplified spontaneous emission
(ASE), and the hints for identifying them in experiment. As a typical example
it analyzes the latest observations by Dogariu et al. (Science 331, 442, 2011),
and clarifies that it is SR. It also highlights the revealed potential
significant application of SR and SF for remote sensing in air.
