Explainers - BBC News

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<script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.adverts && bbcdotcom.adverts.slotAsync) { bbcdotcom.adverts.slotAsync('mpu', [1,2,3]); } })(); /*]]>*/ </script> </div> </div> <div id="comp-candy-asset-munger-3" class="distinct-component-group "> <h2 class="group-title " data-entityid="#in_video_"> In Video </h2> <div class="sparrow-container sparrow-columns"> <div class="sparrow sparrow__3 sparrow__light-3"> <div class="sparrow-item faux-block-link" data-entityid="av-stories-now#1"> <div class="sparrow-item__image"> <div class="responsive-image responsive-image--16by9"> <div class="responsive-image__inner-for-label"> <div class="js-delayed-image-load" data-src="https://web.archive.org/web/20180131141715oe_/https://ichef.bbci.co.uk/news/200/cpsprodpb/5B5F/production/_99819332_p05wmd8k.jpg" data-width="976" data-height="549" data-alt="A lunar eclipse, supermoon and blue moon are about to happen at once. 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href="/web/20180131141715/http://www.bbc.co.uk/news/av/42868530/five-tips-to-keep-your-app-data-safe" class="title-link"> <span class="off-screen">Video </span> <h3 class="title-link__title"> <span class="title-link__title-text">Five tips to keep your app data safe</span> </h3> </a> <div class="sparrow-item__info"> <ul class="mini-info-list"> <li class="mini-info-list__item"><div class="date date--v2" data-seconds="1517291271" data-datetime="30 January 2018">30 January 2018</div></li> <li class="mini-info-list__item mini-info-list__item--section"><span class="mini-info-list__section-desc off-screen">From the section </span><a href="/web/20180131141715/http://www.bbc.co.uk/news/technology" class="mini-info-list__section" data-entityid="section-label">Technology</a></li> </ul> </div> </div> <a href="/web/20180131141715/http://www.bbc.co.uk/news/av/42868530/five-tips-to-keep-your-app-data-safe" class="faux-block-link__overlay-link" tabindex="-1" aria-hidden="true">Full article Five tips 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faux-block-link"> <div class="merlin-item" data-entityid="guide-content#1"> <div class="merlin__image"> <div class="responsive-image responsive-image--16by9"> <div class="js-delayed-image-load" data-src="https://web.archive.org/web/20180131141715oe_/https://ichef-1.bbci.co.uk/news/200/cpsprodpb/7D24/production/_99763023_mediaitem99728218.jpg" data-width="976" data-height="549" data-alt="Senator Tammy Duckworth (D-IL) carries her daughter Abigail"></div>  </div> </div> <div class="merlin__body"> <a href="/web/20180131141715/http://www.bbc.co.uk/news/world-us-canada-42803733" class="title-link"> <h3 class="title-link__title"> <span class="title-link__title-text">The 'miracle' that helped a US mother make history</span> </h3> </a> <p class="merlin__summary">Tammy Duckworth, a double amputee, will be the first senator to give birth. 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Are they allowed to?</p> </a> </div> <div class="features-and-analysis__story" data-entityid="features-and-analysis#3"> <a href="/web/20180131141715/http://www.bbc.co.uk/news/uk-42748203" class="bold-image-promo"> <div class="bold-image-promo__image"> <div class="responsive-image responsive-image--16by9"> <div class="js-delayed-image-load" data-src="https://web.archive.org/web/20180131141715oe_/https://ichef-1.bbci.co.uk/news/304/cpsprodpb/CCA2/production/_99468325_mediaitem73273258.jpg" data-width="976" data-height="549" data-alt="John Worboys"></div>  </div> </div> <h3 class="bold-image-promo__title">Reality Check: Could Worboys be banned from London?</h3> <p class="bold-image-promo__summary">Sadiq Khan has said the rapist John Worboys should be banned from London. How would that work?</p> </a> </div> </div> </div> <div id="bbccom_native_1_2_3_4" class="bbccom_slot native-ad"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.adverts && bbcdotcom.adverts.slotAsync) { bbcdotcom.adverts.slotAsync('native', [1,2,3,4]); } })(); /*]]>*/ </script> </div> </div> <div id="bbccom_mpu_bottom_1_2_3_4" class="bbccom_slot mpu-bottom-ad" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.adverts && bbcdotcom.adverts.slotAsync) { bbcdotcom.adverts.slotAsync('mpu_bottom', [1,2,3,4]); } })(); /*]]>*/ </script> </div> </div> <div id="bbccom_adsense_1_2_3_4" class="bbccom_slot adsense-ad" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.adverts && bbcdotcom.adverts.slotAsync) { bbcdotcom.adverts.slotAsync('adsense', [1,2,3,4]); } })(); /*]]>*/ </script> </div> </div> </div> </div> </div> </div> </div> <div id="core-navigation" class="navigation--footer"> <h2 class="navigation--footer__heading">BBC News Navigation</h2> <nav id="navigation--bottom" class="navigation navigation--bottom " role="navigation" aria-label="BBC News"> <span class="navigation-core-title">Sections</span> <ul class="navigation--bottom__toplevel"> <li class=""> <a href="/web/20180131141715/http://www.bbc.co.uk/news" class=""> <span>Home</span> </a> </li> <li class=""> <a href="/web/20180131141715/http://www.bbc.co.uk/news/uk" data-panel-id="js-navigation-panel-UK" class="navigation-arrow"> <span>UK</span> </a> <div class="navigation-panel navigation-panel--closed js-navigation-panel-UK"> <div class="navigation-panel__content"> <ul class="navigation-panel-secondary"> <li><a href="/web/20180131141715/http://www.bbc.co.uk/news/uk"><span>UK Home</span></a></li> <li> <a href="/web/20180131141715/http://www.bbc.co.uk/news/england"><span>England</span></a> </li> <li> <a href="/web/20180131141715/http://www.bbc.co.uk/news/northern_ireland"><span>N. 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