PRI's The World Published by PRI's The World Why the shortage of veggies in UK shops? Lettuce find out. Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/735025/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Britons are having a tough time shopping for vegetables. Lettuce, broccoli and zucchini are among the greens in short supply — so short that supermarkets are rationing them.