||1:Private aviation was hit hard by the global financial crisis, when both companies and individuals sought to pare expenses.||2:But now private jets are booming again.||3:This is partly because new booking services and shared-ownership schemes are cutting the cost of going private and luring busy executives away from first-and business-class seats on scheduled flights.||4:But the boom is also a result of tax breaks, which are even more generous than those lavished on ordinary airlines.||5:In Europe firms and individuals can avoid paying value-added tax on imported private jets by routing purchases through the Isle of Man.||6:This scheme has cut tax bills by ￡790m ($1bn) for imports of at least 200 aircraft into the European Union since 2011.||7:America’s rules are loopier still.||8:Donald Trump’s tax reform allowed individuals and companies to write off 100% of the cost of a new or used private jet against their federal taxes.||9:For some plutocrats this has wiped out an entire year’s tax bill.||10:For others, it has made buying a jet extraordinarily cheap.

||1:全球金融危机重创了私人航空业，私人航空公司和个人都试图削减开支。||2:但如今私人飞机又开始蓬勃发展。||3:一定程度上是因为新的预订服务和股权分享计划正在降低私人飞机的成本，并吸引了乘定期航班头等舱和商务舱忙碌的高管们。||4:但这种繁荣也是税收优惠的结果，对于私人飞机的税收优惠甚至比普通航空公司还要慷慨。||5:在欧洲，公司和个人可以在马恩岛购买进口私人飞机，从而避免缴纳增值税。||6:自2011年以来，该计划已将至少200架飞机的进口关税削减7.9亿英镑(合10亿美元)。||7:而美国的规则更荒唐。||8:唐纳德·特朗普的税收改革允许个人和企业将购买一架新私人飞机或二手私人飞机的全部成本抵减联邦税收。||9:对一些富豪来说，这已经抵消了全年的税单。||10:而对于其他富豪，这使得购买飞机异常便宜。

Other conspiracy theories about Mr Obama are even loopier .

其他版本的奥巴马阴谋论更让人摸不着头脑。